A rightward-moving dragster accelerates from 0 m/s to 75 m/s in 4.5 s. Determine the a plane averages a speed of 270 mi/hr, then how much time (in hours) will it take to travel a distance of 852 miles?

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?