Question

Kinematics ! 40 POINTS

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Answer 1

Answer:

initial velocity , u = 0

height of the tower = h

height of balcony = h - 20

when stone is dropped from the tower suppose the time taken is t , then for the second case it will be t - 1

h = ut + 1/2 gt raise to 2 = 0+ 1 /2 gt raise to 2 .........................(1)

h - 20 = 1/2 g ( t -1) raise to 2 ................(ii)

solving (1) and (ii)

we get t = 2.5

h = 31 . 25

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Answer 2

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