Question

A parachutist drops first freely from an aeroplane for 10s and then his parachute opens out. Now he descends with a net retardation of 2.5ms −2 . If he bails out of the plane at a height of 2495 s and g=10ms −2 , find the time taken to reach the ground​

Answer 1

Answer:

Suppose the man drops at Am from A to B he is falling freely and then at B parachute opens out and he falls with a retardation of 2.5m/s2. ∴BC=AC-AB=2495-500=1995m. =√25=5m/s↓

Explanation:

i hope u understand dear