A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
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Answer Choices
9 m/s2
24 m/s2
30 m/s
81 m/s
30 m/s
24 m/s2
9 m/s2
81 m/s

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?