Question

a paratrooper does not get injured while jumping on the earth from a flying aeroplane​

Answer 1

Explanation:

A paratrooper doesn’t get injured (usually) while jumping from a flying airplane because he wears a parachute. Parachutes operate by filling with air and slowing the rate at which things (paratroopers) fall.

The newest troop parachutes such as the T-11 are designed to have an average rate of descent of 19 feet per second (5.8 m/s) for the 95th percentile service member, compared with 24 feet per second (7.3 m/s) with the T-10C.

For reference, 5.8 m/s is roughly equal to 21 kmh.