The motion of a train of mass 340M is opposed by a tractive resistance to motion of 190N/Mg. The train covers a total distance of 800m while accelerating during 1.5min on its way up an incline of 1 in 140 from an initial speed of 18km/h Analyse the motion and calculate:

A heavy truck is running up the track at an incline of 1 in 15 (sine) at a constant speed of 50 km/h. The total working power is 65 kW during this working condition. Calculate the power required to overcome the friction of force or the road resistance if knowing the mass of the truck is 10 tonnes?

A heavy goods vehicle of total mass 4.8 tonnes descends a hill with a gradient of 8 degrees from the horizontal. During this motion, the vehicle experiences a rolling resistance to its motion of 880 N. Whilst travelling at a velocity of 72 km/h, its brakes are applied, and the truck is brought uniformly to rest in a distance of 140 m. During this period of constant deceleration, it may be assumed that the rolling resistance remains constant at 880N, this being in addition to the retarding force applied by the brakes. Calculate for the vehicle whilst it is slowing down: a) The vertical height through which it descends. b) Its decrease in potential energy. c) Its initial velocity in m/s. Its decrease in kinetic energy.

If use please use g = 9.8 m/s2