A section of river that is 90.0 m wide has a current which flows south at 2.00 m/s. Some physics students paddle their canoe at 3.00 m/s east relative to the water. What is the resultant speed of the canoe relative to the banks of the river

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?