Arun & his friends were travelling in a car. The car suddenly stops due to engine failure. If Arun and his friends apply a force of 1000 N to drag the car to the nearest garage that is 1.2 km from that place in 20 minutes, determine the total power spent by them.
A cyclist comes to a skidding stop in 10 m. During this process, the force on the cycle due to the road is 200 N and is directly oppose to the motion. (a) How much work does the road do on the cycle? (b) How much work does the cycle do on the road?