Usha sweem in a 90 m long pull . See cover 180m in one minute by sweeming from one end to the other and back a long the same stratepath find the avarage speed and a avarage volicity of usha
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average speed of body is equal to Total distance travelled divided by total time taken so the average speed is 180 divided by 60 equal to 3 metre per second and average velocity is equal to displacement of an time here displacement is zero show average velocity is 0
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avg speed=(x1+x2)/time=180/60=3
avg velocity= 0 because the displacement is zero
avg velocity= 0 because the displacement is zero
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