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A rock is dropped from the top of a tall building. How high is the building if it takes 3.25seconds for the rock to strike the ground? Ignore the effects of air resistance. A) 1…

A rock is dropped from the top of a tall building. How high is the building if it takes 3.25seconds for the rock to strike the ground? Ignore the effects of air resistance. A) 1…
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A rock is dropped from the top of a tall building. How high is the building if it takes 3.25seconds for the rock to strike the ground? Ignore the effects of air resistance. A) 169m B)15.9m C)51.8m D) 32.2m

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User Fent
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1 Answer

1 vote

Answer:

C)51.8m

Step-by-step explanation:

Kinematics equation:


y=v_(oy)*t+1/2*g*t^2

in this case:


v_(oy)=0


y=1/2*9.81*3.25^2=51.8m

answered
User Muruge
by
8.2k points
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