a parachutist flying in an aerolane jumps whanit is at a height 3km above the ground.he opens his parachute when he is above ground .describe his motion

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Solution

Dear student,

Assume that aeroplane is flying horizontally. Now he is like a freely falling body in
vertically downward direction and has uniform velocity equal to plane velocity in horizontal direction till he opens parachute at a height 1 km above the ground.

After parachute is opened, air resistance (Viscous drag) and buoyancy also acts on him
along with gravitational force. In the presence of these forces the net acceleration will
become zero after falling through certain height, there he attains constant velocity called Terminal Velocity. Further he falls on to the ground with the same terminal.

Thank you :)

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