Question

A stone is dropped freely in a river from a bridge. It takes 5 seconds ro touch the water surface in the river. Calculate a)the height of the bridge from the water level. B)the distance covered by stone in the laat seconds

Answer 1

Answer:125m,5m

Explanation:h is the height of the bridge

s=h

t=5s

u=0

A=10m/s2

Using 2nd equation,

h=1/2×10×25

=125m

Distance covered in last second=g/2

=5m