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anonymous
 4 years ago
hi , i am having a lot of trouble with this problem any help would be appreciated A little cat, Bella, walks in a straight line, which we shall call the x axis, with the positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function of time. Find the x component of Bella's velocity at t = 4.00 s. give me a sec have to draw graph...
anonymous
 4 years ago
hi , i am having a lot of trouble with this problem any help would be appreciated A little cat, Bella, walks in a straight line, which we shall call the x axis, with the positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function of time. Find the x component of Bella's velocity at t = 4.00 s. give me a sec have to draw graph...

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0to see the graph i found the question online here it is http://www.cobaltss.net/forums/lounge42/anyonegoodphysics151699/

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[v(t)=\frac{4}{3}t+8\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[a(t)=\frac{4}3{}\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a) t=4 v(t)=16/3+8 v(t=4)=2.66

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can you please explain to me what the question is asking

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i mean how did you figure out the first equation you wrote

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok, the line is passing (0,8) and (6,0) right

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and we know its slope is 8/6

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0put m=8/6 and (0,8) or (6,0) to find n

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so this is how find the velocity

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328511634338:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and now you have v(t) so you can find v at any time

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0do you know derivative

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this cat is negative accelating (deceleration ) and t=6 v=0 it means at t=6 it stops in a short time and going to opposite side(speed up)..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dx/dt=v(t) dv/dt=a(t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0that`s how I found a(t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0acceleration at t = 6.00 s.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you need it for question c,d,e

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what is the difference between velocity and acceleration

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0In physics, acceleration is the rate of change of velocity with time

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0acceleration is always constant or zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if velocity is constant then a is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0in your question, v is not constant, it changes with time, so there is an accelation

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328512464896:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328512506539:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so if velocity is constant acceleration is zero if not it changes

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0was i suppose to use this equation for this problem

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so if velocity is constant acceleration is zero that's right

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can u take a look at the formula i attached

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you can use it. you know that a is constant and it is 4/3 already v0=8 v(x) we looking for at t=?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sryy how do you know acceleration constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0because a is slope of v, v is a line, slope doesnot change in time, it is constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0as I said before a is zero or constant ALWAYS

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328513106159:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how do you know if it is zero or constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0take a look graph which I drew at up..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok, there is always two stuation,

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328513296298:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this one is first stuation..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the velocity is increasing then decreasing

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0velocity is not constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328513379149:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0this is secend stuation, v is constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0your problem is first one..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yah . the last graph you drew show that velocity is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but I drew speed up, yours is speed down

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and it has inital velocity which is 8

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so everything is clear now

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so you said acceler is alway zero or constant is velocity is constant its zero. what if velocity is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0it means that car remains stop, no act no acce..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and if acceleration is zero what does that tell you about your car

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if you are driving a car 50 mile/h all the way then your accel is 0 if you are speeding 50 to 100 in 1 min then there is accele. which is const..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i apologize for making you repeat but if you have constant velocity , then the acceleration of your car would be...

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0http://wiki.answers.com/Q/What_causes_acceleration_to_increase

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1328514179090:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0v doesnt change with time, so a is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so the car is stopped?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0because acceleration is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no, acceleration is zero doesnot require v is zero, v can be zero or constant, either way a is zero

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay got it thank you

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can you give me some help with the next part

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I need it see it, I cant promise..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so if i need to find x component of her acceleration at t = 4.00 s.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i know that her acceleration is constant

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes, her a is always 4/3 constant you see a(t)=4/3 doesnot depent on t

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so whatever you plug into t, it will always will be 4/3

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes.. but for accel right

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i mean whatever you plug in for t into the equation: y=4/3t+8

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0y=4/3t+8 this eq. is for finding v at some certain time v(t)=4/3t+8 a and b you need to use this eq. a(t)=4/3 c,d,e use this formula

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i dont know what to do

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a) t=4 v=(4/3)*4+8=2.66 is that right

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0or v=v0+at v=8(4/3)*4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0solve the same way t=7

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ill be back in ahour my battey is low

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0maybe I can't stay that long..
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