posted by Xin Zhang .
A truck of mass 8000 kg is accelerating at 5.0 m/s2 up a hill of inclination 4 degrees to the horizontal. The friction forces on the truck add up to 550 N.
a) Draw a neat FBD of the truck indicating all the forces acting on it.
b) What force does the truck exert against the road in the direction of travel?
c) What force does the road exert on the truck in the direction of travel?
d) With the truck’s engine working just as hard, what would be the acceleration of the truck down the hill (again a FBD is needed)?
We cannot provide drawn figures