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A container with mass m kg is dropped by a helicopter from height h km at...

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Advance Math

A container with mass m kg is dropped by a helicopter fromheight h km at time t=0, with zero velocity. from the outset, itsfall is controlled by gravity and the force of air resitance, f(v)=-kv, where v is the current velocity of the container. in t secondsafter the drop, a parachute opens, resulting in an increase of airresistance up to f(v) = -kv. determine the time t at which thecontainer touches the ground. and its velocity at this moment. if m= 200 kg, h = 2000 m, t = 20 s, k = 10 kg/s, and k = 400 kg/s

Answer & Explanation Solved by verified expert
4.1 Ratings (826 Votes)
I will take the positive direction of x as upward with x 0 being the surface of the ground I will also assume that we can treat the gravitational force as being constant over the relevant distances The forces on the object when it is first released are gravity and the frictional drag and the total force is the sum of these F Mg kvt From Newtons second law F    See Answer
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