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Numerical problems Calculate K.E. of a...

Numerical problems Calculate
K.E. of a car of mass 400 kg moving with ·a speed of 20 `ms^(-1)`

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`K.E-1/2mv^2=1/2xx400kgxx(20m/s)^2=80000J`
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S CHAND IIT JEE FOUNDATION-WORK AND ENERGY-QUESTION BANK -3
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