Question

A body is falling freely from a height of 19.6m. Find the
velocity on reaching the ground.
Solution :​

Answer 1

Answer:

Let x be the distance covered in the last second. Now using v=u+gt, we get

2gh

=

2g(h−x)

+g

2g(19.6)

=

2g(19.6−x)

+g

Solving the above equation we get,

x=14.7m