Question

15. (a) How long will a stone take to fall to the ground from the top of a building 80 m high and (b) what will be the velocity of the stone on reaching the ground ? (Take g = 10 m s-2)​

Answer 1

Answer:

a.) s=ut+0.5at

2

80=0+0.5(10)t

2

t=4 s

b.) v=u+at

=10×4=40 m/s

Explanation:

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