Ahelicopter accelerating upward at 5.9 m/s. when the upward velocity of the helicopter is 40 /s a bullet is fired vertically upward from the chopper. the bullets relative velocity as measured from the helicopter is 13 m/s. how much time does it take for the bullet to strike the helicopter? . also sketch the vertical position vs time graph for both the helicopter and the bullet.

Frequency of electromagnetic waves that a radio station is assigned is called

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?

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.