JEE Main Physics question
A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1 ms⁻². If the coefficient of sliding friction is 0.2, then the force exerted by the horse in forward direction is
Answer: (C)
Solution
Treating the horse-cart system (total mass 2000 kg, moving together at a = 1 m/s²): the ground pushes the horse forward with force F (the "force exerted by the horse"), while
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