February 28, 2017

Homework Help: College Physics

Posted by Jacqueline on Tuesday, October 14, 2008 at 11:51pm.

A paratrooper w/ a fully loaded pack has a mass of 120kg. The force due to air resistance on him when falling w/ an unopened parachute has magnitude
F(sub)d = bv^2, where b=0.14 N*s/m^2.

a) if he is falling w/ an unopened parachute at 64m/s, whats is the force of air resistance acting on him?

b) what is his acceleration?

c) what is his terminal velocity?

I figured that to be:
v(sub)t= sqrt (120 *9.8) / (0.14)

Can someone please help me find acceleration and the force of air resistance?

Thank you!! :)

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