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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
 2 years ago
 2 years 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
 2 years ago
 2 years ago

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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