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प्रश्न
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
The Deceleration.
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उत्तर
Deceleration a = ( v - u )/t = ( o - 30 )/ 20 = -1.5 ms-2
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