question_answer

  The motion of a body of mass 5 kg is shown in the v-t graph. Find from graph. it acceleration. the force acting on the body the change in momentum of body in 2 seconds after start.

Answer:

     (i) Acceleration = slope of the line of v-t graph                                 (1)  (ii) The force acting on the body is given by (iii) Thus, change in momentum = mv ? mu                                (1)