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The power engine which accelerates a car...

The power engine which accelerates a car of mass 800 kg to a speed of 72 km/h from rest in 32s is

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Speed of the car v=72km/h =20 m/s
`KE=1/2(mv^2)=1/2xx800xx400=400xx400J
P=(KE)/time=400xx400/32=5000W=5KW`
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