Physics, asked by gomesajay3358, 10 months ago

What is the work to be done to increase the v of a car from 30km h_1 to 69h_1 if the mass of the car is 1500kg

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Answered by VedswaroopK
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Work, Energy and Power

Work Energy Theorem

What is the work to be done...

PHYSICS

What is the work to be done to increase the velocity of a car from 30 km h−1 to 60 km h−1 If the mass of the car is 1500 kg?

December 26, 2019Elina Hargude

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Initial velocity    u=30 km/h=30×185=325 m/s

Final velocity    v=60 km/h=60×185=350 m/s

Mass   m=1500 kg

Work done   W=21mv2−21mu2

⟹ W=2m(v2−u2)=21500×((350)2

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