Asked by Hannah
1) A penny is dropped from rest from the top of a very tall building. Assuming the height of the building is 407 m and ignoring air resistance, find the speed with which the penny strikes the ground.
I am not sure how to start this. Thank you!
I am not sure how to start this. Thank you!
Answers
Answered by
drwls
V = sqrt(2 g X)
Why? Because
M g X = (1/2) M V^2
Why? Because
M g X = (1/2) M V^2
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