Help pls There are two groups of students participating in a tug of war. One group pulling two the east is pulling with a force of 5,000N. It is a stalemate and there is no movement. What is the force of the group pulling to the west and what is the net force?

a. 7000 N, 2000N west
b. 6000 N, 1000N west
c. 4000N, 1000 N east
d. 3000N, 2000 N west
e. 5000 N, 0N

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?