MHT CET 2022 Physics question
A gardener pushes a lawn roller through a distance 20m. If he applies a force of 30kg –wt in a direction inclined at to the ground, the work done by the gardener in pushing the roller is [g = 9.8 m/s, , ]
Answer: (D)
Solution
The force is N, inclined at to the ground, while the displacement m is along the ground. Work done \cos\cos$ =
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