A particle accelerates from rest with acceleration 5 metre per second square .after sometime particle moves with constant velocity then it deaccelerates with 5 metre per second square and finally comes to rest. in whole of journey it takes 25 second and the average speed in the journey is72 kmhr .(1) the time interval during which it move d with constant velocity 15 seconds.(2) the maximum velocity acquired by it is 25ms.(3)the time interval during which it has moved with constant velocity is 25 sec.(4)the maximum velocity acquired by it is 30ms.
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