A motor car needs an engine of 3000 watt...

A motor car needs an engine of 3000 watts to keep it moving with a constant velocity of 10 m/sec on horizontal road. The force of friction between the car tyres and the ground is :

300 dyne

300 newtons

`3xx10` Newton

`3xx10` dyne

Text Solution

Verified by Experts

The correct Answer is:

Power P=F v
`implies F=P/u=(3000)/(10)=300` Newtons.

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