Question

A truck loaded with sand accelerates along a highway. The driving force on the truck remains constant. What happens to the acceleration of the truck as its trailer leaks sand at a constant rate through a hole in its bottom? a. It decreases at a steady rate. b. It remains constant. c. It increases at a steady rate. d. It decreases and then increases. e. It increases and then decreases.

Answer 1

Answer:

C

Explanation:

By newton's 2nd law of motion

a= F/m

F= force

m= mass of truck and the load

Total mass keeps decreasing steadily And since the acceleration is inversely proportional to mass, acceleration keeps increasing steadily.

hence correct option would be c. It increases at a steady rate.