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A bus of mass 6 metric tons is pulled at a speed of 18 KMPH an up incline of inclination 1 in 20. Power of the engine is, (g = )
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Correct option is A
P =FV
The static frictional force F applied by the road on the wheels = mg sin θ
This force F is responsible for the motion of the bus
.: Power = FV = mg vsin θ
= 6000 x 10 x (18 x 5/18) x 1 / 20 W
= 15 KW
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