A particle moves along the sides AB,BC, and CD of a square of side 25 m shown in the figure with a speed of 15 m/s. The magnitude of average velocity of the particle is
Speed of the particle =15 m/s
Total distance travelled =75 m(25 m+25 m+25 m)
So total time taken =7515=5 sec
Now total displacement is A to D only
i.e. 25 m in 5 sec
So, magnitude of average velocity of the particle is
=255=5 m/s