Question

What is the velocity at the end of 2s when a body of mass freely fall from rest

Answer 1

Explanation:

for a free falling body

v=u+at

and u=0anda=g

∴v=gt

v

2

v

1

=

t

2

t

1

=

2

1

Answer 2

Whatever the time taken for the body to fall is, the velocity is always 9.8 m/s². This is because the acceleration due to gravity is 9.8 m/s².