Aboat is moving towards east with a velocity 4m/s with respect to still water and the river is flowing towards north with velocity 2m/s and the wind is blowing towards north witg velocity 6m/s determine the direction of flag blown over by the wind hoisted on the boat

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?