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cutie.patootie
Group Title
A 5.5 kg bowling ball initially at rest is dropped from the top of a 12 m building. It hits the ground 1.75 s later. Find the net external force on the falling ball.
 one year ago
 one year ago
cutie.patootie Group Title
A 5.5 kg bowling ball initially at rest is dropped from the top of a 12 m building. It hits the ground 1.75 s later. Find the net external force on the falling ball.
 one year ago
 one year ago

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yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
s=1/2at^2 you have s and t find a. net force=ma. plug and solve.
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
What is s?
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
s>distance travelled a> acceleration due to gravity here t>time taken
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
Okay, thanks:)
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
I 431.2N but that isn't an option..
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
43.12 N is the answer.
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
So this is what I did.. s=12m a=? t=1.75s 12=((1.75)^2a)/2 12=(3.0625a)/2 24=3.0625a a=7.84 netforce=55*7.84 netforce=431.2N
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
Net acceleration. a = 2*12/1.75² Net force ma = 5.5* 2*12/1.75² = 43.12 N
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
I get what your saying now. But the only problem is my choices are 120N, 54N, & 0N. But I can rule out 0N automatically
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
hmm. no idea. sorry.
 one year ago

cutie.patootie Group TitleBest ResponseYou've already chosen the best response.0
Its okay, thanks for your help though :) I really do appreciate it
 one year ago

yrelhan4 Group TitleBest ResponseYou've already chosen the best response.1
you're welcome. good luck. :)
 one year ago
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