question_answer

  When two bodies move uniformly towards each other, the distance between them decreases by 8 m/s. If both the bodies move in the same direction with the same speeds, the distance between them increases by 4 m/s. What are the speeds of two bodies?       

Answer:

                  Let u ad v be the speeds of two bodies. According to the question, u + v = 8 and u-v= 4         (1) Solving the above equations, we get 2u = 12                           u = 6 m/s v =S-u=8 -6= 2 m/s                                          (1)