a) A swimmer swims in a 72 m long pool. She covers 144 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average velocity of the swimmer.
b) Under what condition(s) the magnitude of average velocity of an object is equal to its average speed.
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The displacement will be zero then the average velocity also be zero.
Average speed =144/60=12/5=2.4m/s
B)magnitude of velocity and spped be equal when swimmer Swims along a straight line in same direction.
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