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A block of mass 15 kg is placed on a lon...

A block of mass 15 kg is placed on a long trolly . The coefficient of friction between the block and trolly is 0.18 The trolly accelerates from rest at ` 0.5 m//s^(2) ` for 20 seconds and then moves with a unifrom velocity Discuss the motion of the block as viewed by (i) a stationary observer on the ground (ii) an observer moving with the trolly .

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SL ARORA-LAWS OF MOTION : FRICTION-Self Practice
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  2. A force acts for 10 s on a body of mass 10 kg after which the force ce...

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  3. A truck starts from rest and rolls down a hill with a constant acceler...

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  18. A hammer weighing 3 kg moving with a velocity of 10ms^(-1) strikes aga...

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