JEE Main Physics question
An iron block of mass 5 kg is kept on a trolley. If the trolley is being pushed with an acceleration of 5 m/s², what will be the force of friction between the block and the trolley surface? (Take the coefficient of static friction between the block and the surface to be 0.8)
Answer: (D)
Solution
For the block to accelerate with the trolley (no relative sliding), the required friction is f = ma = 5×5 = 25 N. The maximum available
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