Find the power of an engine which can maintain speed of `50ms^(-1)` for a train of mass `3xx10^(5)`kg on a rough line. The coefficient of friction is `0.05`. Take `g=10ms^(-2)`

Calculate the power of an engine which can maintain a speed of 50 "m.s"^(-1) for a train of mass 3xx10^(6) kg on a rough level track. The coefficient of friction is 0.05. Given g = 10 "m.s"^(-2)

Find the work done and power of an car engine which can maintain a speed of 40 ms^(-1) for a mass of a car 2xx10^(3) kg on a rough level road to 2 km. The coefficient of friction is 0.05.

A body is rolling on the ground with a velocity of 1ms^(-1) . After travelling a distance of 5 m, it comes to rest. Find the coefficient of friction. Take g=10ms^(-2) .

A particle of mass 0.1kg has an iniital speed of 4ms^(-1) at a point A on a roudh horizontal road. The coefficient of friction between the object and road is 0.15. The particle moves to a point B at a distance of 2m from A. What is the speed of particle at B ? Take g=10ms^(-2)