Question

A train of mass 3.3 × 10^6 kg is moving at a constant speed up a slope inclined at an angle of 0.64°

to the horizontal. The engine of the train is producing a useful output power of 14 MW.
Assume that there are no frictional forces opposing the motion of the train.
What is the speed of the train?
A 0.43 m s–1 B 4.2 m s–1 C 39 m s–1 D 380 m s–1.
Ans is C how?
ref: Q14 - 9702_s18_qp_11

Answer 1

The triangles in the picture are congruent by which method