Q.8 A car travels from stop A to stop B with a speed of 30 km/h and
then returns back to A with a speed of 50 km/h. Find
(i) Displacement of the car.
(ii) Distance travelled by the cr.
(iii) Average speed of the car.
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Displacement is zero.
for avg speed you can let distance be x. after that you can find time by t=v/s for a to b, then same for returning. use the avg speed formula and you will definitely get average speed.
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