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A truck of mass 1000 kg accelerates unif...

A truck of mass 1000 kg accelerates uniformly from rest to a velocity of 15 ms'in 5 seconds. Calculate (i) its acceleration (ii) its gain in KE and (iii) average power of the engine during this period, neglect friction

Text Solution

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(i) `a=(v-u)/t=3m/s^(2)`
(ii) `"Gain in K.E."=1/2m(v^(2)-u^(2))=1.125xx10^(5)J` (iii) `p=W/t=225000W`
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