Ineed to answer questions for a project i would really appreciate it if anybody can take the time out their day to answer these questions in the most reasonable ways do not answer if you dont know i really need the grade for this project and i’ll give 30 points and i’ll mark brainliest the person with the most reasonable answers

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?