question_answer 46)

  A truck of mass m is moved under a force F. If the truck is then loaded with an object equal to the mass of the truck and the driving force is halved, then how does the acceleration change?

Answer:

  Let, initial mass,  Initial force, According to the question, new mass, and new force,     From Newton's second law, F = ma   Change in acceleration                     Hence, the new acceleration will be one-fourth of previous acceleration.