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A truck tows a trailor of mass 1200kg at...

A truck tows a trailor of mass `1200kg` at a speed of `10m//s` on a level road The tension in the coupling is `1000N`
(i) What is power expended on the trailor ?
(ii) Find tension in the coupling when the truck accends a road having an inclination of `1` in `6` Assume that the frictional resistance of the incline is same as that on the level road .

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