Question

Two particles A and B start moving towards each other with velocities 10ms-1 and 15ms-1 respectively from the separation of 500m. What is the displacement of A w.r.t. B after 4 seconds?

Answer 1

Displacement of A = Velocity × Time => 10 × 4 = 40 m Displacement of B => 15 × 4 = 60 m Total Displacement = 40 + 60 = 100 m Therefore, Displacement b/w A and B after 4 seconds = 500 - 100 = 400 m Ans.