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Two forces with magnitudes of 200 and 100 pounds act on an object at angles of 60° and 170° respectively. Find the direction and magnitude of these forces. Round to two decimal places in all intermediate steps and in your final answer.
show work
 one year ago
 one year ago
Two forces with magnitudes of 200 and 100 pounds act on an object at angles of 60° and 170° respectively. Find the direction and magnitude of these forces. Round to two decimal places in all intermediate steps and in your final answer. show work
 one year ago
 one year ago

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youarestupidBest ResponseYou've already chosen the best response.0
write something down if YOU want a medal
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
i just need help on the problem please!
 one year ago

youarestupidBest ResponseYou've already chosen the best response.0
plus I am sorry but I do not know the answer
 one year ago

TusharaBest ResponseYou've already chosen the best response.1
calculate the vertical and horizontal components of each force, and then all the vertical forces together, then add horizontal forces together... after that u can combine the vertical and horizontal vector using pythagaros theorem to get the resulting force
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
im not sure how to do all that .. im horrible in math and im just trying to pass so i can be done:(
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
I know i have to resolve each vector into horizontal and vertical components using sin and cos but im not sure how to actually begin
 one year ago

geerky42Best ResponseYou've already chosen the best response.1
Always try to sketch. It may help you.dw:1359302063400:dw
 one year ago

geerky42Best ResponseYou've already chosen the best response.1
Just do what @Tushara told you to do.
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
i just dont know where or how to really do it :/
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
dw:1359302350812:dw
 one year ago

geerky42Best ResponseYou've already chosen the best response.1
dw:1359302341604:dw\[\Large \sin \theta = \dfrac{y}{r} \Rightarrow r \sin \theta = y\]\[\Large \cos \theta = \dfrac{x}{r} \Rightarrow r \cos \theta = x\]
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
but how would i put this all into writing to show my work? like in step form?
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
dw:1359302475063:dw
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
i began with this.. is this a good start; f1x= 200cos(60) f1x= 100 cos (170) rx= 200 cos(60) + 100 cos(170)
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
F1 = 200, F2 = 100 F1x = F1 cos 60 F1y = F1 sin 60 F2x = f2 cos 170 F2x =F2 sin 170 Rx = F1x + F2x Ry = F1y + F2y R(theta) = tan^1(Ry/Rx)
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
On the second line, you mean f2x, but that's good.
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
but now where do i go ?
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
Now do the same for the force components in the y direction.
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
Do this: f1x= 200cos(60) f2x= 100 cos (170) rx= 200 cos(60) + 100 cos(170) For F1y, F2y, and Ry
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
F1y = F1 sin 170 F2y = ... Ry = F1y + F2y = ...
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
f1y = 100 sin (170) f2y = 200 sin ( ) ?? hmm
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
F1 = 200, F2 = 100. You switched them.
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
f1 = 200 sin (170) f2 = 100 sin (60) ??
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
okay the it would be ..
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
You got the xcomponents above and you did it correctly. Now you need the ycomponents. f1y = 200 sin (60) f2y = 100 sin (170) Ry = f1y + f2y = 200 sin 60 + 100 sin 170
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
ok i got the 70 and 170 mixed around
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
Remember the first force, F1, is 200 lb at 60 deg The x component is F1x = 200 cos 60 The y component is F1y = 200 sin 60 The second force, F2, is 100 lb at 170 deg The x component is F2x = 100 cos 170 The y component is F2y = 100 sin 170 The resultant's xcomponent is Rx = F1x + F2x = 200 cos 60 + 100 cos 170 The resultant's ycomponent is Ry = F1y + F2y = 200 sin 60 + 100 sin 170
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
Now you need to do the actual calculations with a calculator of what Rx and Ry are, and round off to 2 decimal places.
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
so all i have to do is put the equation in the calculator for rx and ry and thatll give me the answers?
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
i need to complete the problem?
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
For now, yes. That will give you the x and ycomponents of the resultant.
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
okay .. and thats all i do then right
 one year ago

katherinekcBest ResponseYou've already chosen the best response.1
but i have to find the direction and magnitude?
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
Once you have the x and ycomponents of the resultant, you need two more steps. 1. You need to find the magnitude of the resultant. 2. You need to find the direction of the resultant.
 one year ago

mathstudent55Best ResponseYou've already chosen the best response.4
For the magnitude of the resultant, you use the Pythagoras theorem. For the direction of the resultant, you use the inverse tangent to get the angle. See figure below: dw:1359304507660:dw
 one year ago
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