Question

A body is dropped from a height of 39.2 m. After it
crosses half of the height, the gravity disappears.
Find the velocity with which the body strikes the
ground?​

Answer 1

Answer:Given that,

Height h=39.2 m

Initial velocity u=0

Now, from equation of motion

After crosses half distance, the acceleration due to gravity cases to act

So,

 h=239.2​

h=19.6m

 v2−u2=2gh

v2=2×9.8×19.6

v=19.6m/s

Hence, the velocity is 19.6 m/s

Explanation: i hope this answer me help you...