A Navy seal of mass 80 kg parachuted into an enemy harbor. At point a while he was falling the resistive force of air exerted on him was 510 N. Determine the net force acting on him at point A?

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33