Question

A diesel engine weighing 43.0 ton (1 ton = 1000 kg) is at rest on a track inclined at an angle of 9.0°. Five cars, each weighing 3.6 ton, are coupled to the engine through steel wires.

1. Find the tension in the steel wire between the first car and the engine.

2. What is the tension in the steel wire that is holding the last car?

3. What is the tension in the steel wire holding the last car if the engine is working and makes the line of cars accelerate up the incline at 3.0 m/s²?

Answer 1