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Q.

A car of mass 1250 kg is moving at 30m/s. Its engine delivers 30 kW while resistive force due to surface is 750N. What max acceleration can be given in the car

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a

13 m/s2

b

14m/s2

c

15 m/s2

d

16 m/s2

answer is C.

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Detailed Solution

Force produced by the engine F=Pv = 30×10330=103NAcceleration = Forward force by engine–resistive forcemass of car=1000−7501250=2501250=15m​/​s2
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