An engine of mass m is moving up a slope of inclination 0 at

Last updated: 5/30/2023

An engine of mass m is moving up a slope of inclination 0 at a speed V The coefficient of friction between engine and the rail is u If the engine has an efficiency n then the energy spent by engine in time t is 1 nmg sin 0 cos 0 vt 2 mg cos 0 vt n 3 mg sin 0 cos 0 vt n 4 mg sin 0 vt