A lorry of mass 1200 kg climbs a mountain at an angle of sin (theta)=1/20. The mass of the lorry is 16000 kg. the work done by driving force is 1200kj and the resistance to motion is 1240N. The velocity of the lorry at the bottom is 15m/s and at the top is 12m/s. Find the distance from the top to bottom.

This is your assignment. Show us your work and what you have first.

Have you drawn a free body diagram of forces acting on the lorry? Please show us what you have attempted so we can see where you are getting stuck.