An `800 N` marine in basic training climbs a `12.0 m` vertical rope at a constant speed in `8.00 s`. What is his power output?

A 700N marine in basic training climbs a 10.0m vertical rope at a constant speed in 8.00s . What is his power output?

Lift travels in straight line at a constant speed of 3 cc 10^(8) m//s. What is the acceleration of lift ?

A boy of mass 40kg is climbing a vertical pole at a constant speed.If the coefficient of friction between his palms and the pole is 0.8 and g=10m/s^(2) ,the horizontal force that he is applying on the pole is?

A boy of mass 50 kg is climbing a vertical pole at a constant speed. If coefficient of fricition between his palms and the pole is 0.75, then the normal reaction between him and the pole is ("take "=10m//s^(2))

A car of mass m 1600 kg, while moving on any road, experience resistance to its motion given by (m+nV^(2)) newton, where m and n are positive constants. On a horizontal road the car moved at a constant speed of 40 m/s when the engine developed a power of 53 KW. When the engine developed an output of 2 KW the car was able to travel on a horizontal road at a constant speed of 10 m/s. (a) Find the power that the engine must deliver for the car to travel at a constant speed of 40 m/s on a horizontal road. (b) The car is able to climb a hill at a constant speed of 40 m/s with its engine working at a constant rate of 69 KW. Calculate the inclination of the hill (in degree)

How much power is needed to lift a 75- kg student vertically upward at a constant speed of 0.33 m/s ?

A 20 kg monkey slides down a vertical rope with a constant acceleration of 7 ms^(-2) . If g = 10 m//s^(-2) , what is the tension in the rope ?

An elevator has full load capacity 800 kg. Frictional force on the elevator is 4000 N. If elevator is going down with constant speed 2.0 m/s, then the power applied by electric motor at full load is lose to : (1 HP = 746 W, g = 10 m//s^2 )