A parachutist whose mass is 85 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the

Question

A parachutist whose mass is 85 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity Assume tha the force due to air resistance is proportional to the velocity of the parachutist with the proportionality constant b 20 N sec m when the chute is closed and b 90 N sec m when the chute is open If the chute does not open until the velocity of the parachutist reaches 35 m sec after how many seconds will the parachutist reach the ground Assume that the acceleration due to gravity is 9 81 m sec seconds The parachutist will reach the ground after Round to two decimal places as needed

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