Question

To estimate the height of a bridge over a river, a stone is dropped freely in the river from the bridge. The stone takes 3 seconds to touch the water surface in the river. Calculate the height of the bridge from the water level?​

Answer 1

s=ut+0.5at

2

=0(t)+0.5(9.8)(2)

2

s=19.6m

Answer 2

Answer:

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