A helicopter of mass 1000 kg rises with a vertical acceleration of `15 ms^(-2)` . The crew and the passengers weigh 300 kg . Give the magnitude and direction of the
(a) force on the floor by the crew and passengers
(b) action of the rotor of the helicopter on the surroundings air :
(c ) force on the helicopter due to the surroundings air :

A helicopter of mass 2000 kg rises with a vertical acceleration of 15ms^-2 . The total mass of the crew and passengers is 500 kg. Give the magnitude and direction of the (g =10ms^-2 ) (a) Force on the floor of the helicopter by the crew and passengers. (b) action of the rotor of the helicopter on the surrounding air. (c ) force on the helicopter dur to the surrounding air.

A firefighter who weighs 689 N slides down a vertical pole with an acceleration of 2.00" m"//"s"^(2) , directed downward. What are the (a) magnitude and (b) direction (up or down) of the vertical force on the firefighter from the pole and the ( c ) magnitude and (d) direction of the vertical force on the pole from the firefighter ?