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kiamonstaa
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A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor?
1.45 secs
1.14 secs
0.28 secs
0.21 secs
 one year ago
 one year ago
kiamonstaa Group Title
A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor? 1.45 secs 1.14 secs 0.28 secs 0.21 secs
 one year ago
 one year ago

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Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
Do..u knw kinematics equations of motion
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
um.....no
 one year ago

lgbasallote Group TitleBest ResponseYou've already chosen the best response.0
^^that sounds like physics
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
um... i thought it was H(t)= 16t^2+vt+s
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
first we need to convert feet to meter
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
ok...whats next
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
then the time it takes to reach the maximum height
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
wait why do i change it from feet to meters?
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
because we are going to use a=g=9.81m/s^2
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
oh okay
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
Now, can u?
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
whats the a and g? sorry
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
that is accleration
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
ok.......walk me through
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
convert 3.9 feet into meter
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
about one meter?
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
14.8 feet per second in meter per second?
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
oh okay 4 meters and something
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
3.9 feet = 1.18872m and 14.8 feet per second=4.51104 meter per second
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
now,v=u+at 0=4.51 + (9.81)t t=0.46seconds
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
Again, v^2=u^2+2as 0^2=(4.51)^2 + 2(9.81)s s=1.04 m
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
So, maximum height = 1.19+1.04 m = 2.23m
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
Now, s=ut+1/2 at^2 2.23 = 0*t + 1/2 (9.81) t^2 t=0.67 seconds
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
So, total time = 0.46+0.67 =1.13 seconds
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
got it?
 one year ago

kiamonstaa Group TitleBest ResponseYou've already chosen the best response.0
ohh okay.
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.2
welcome
 one year ago
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