Question

A truck of mass 8 metric tonnes starts
from rest and rolls down a hill with constant
acceleration. It travels a distance of 400 m in
20 s. Find its acceleration and force acting on
it. *​

Answer 1

Answer:

s=ut+1/2at²

400=1/2a×20²

800=a×400

∴a=2 m/s²

∴Force, F=ma

               =8000×2

               =16000 N