L A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of 443 Non
the rope, which is inclined at 38.0° to the horizontal. The floor exerts a horizontal resistive force of 106 N. If the weight of
the crate is 92.0 N calculate the acceleration of the crate in the vertical direction. Use g = 9.81 m/s2.

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s.when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?