Assignment No.8_Kinetics of particles_Questions and Answers_2023-24

 

(Q.1)   Find Force P required to accelerate the block as shown in figure at 2.5 m/s2. Take μ = 0.3.




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(Q.2)  A 30 N block is released from rest. It slides down a rough incline having µ= 0.25. Determine    the maximum compression of the spring.




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(Q.3) A man of mass 70 kg and a boy of mass 30 kg dive off the end of a boat, of mass 150 kg, with a horizontal velocity of 2 m/s relative to the boat. If initially the boat is at rest, find its velocity just after a) both the man and boy dive off simultaneously b) the man dives first followed by the boy.


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(Q.4)   A ball drops from the ceiling of a room. After rebounding twice from the floor it reaches a height equal to half that of ceiling, find the coefficient of restitution.

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(Q-5) Two smooth balls collide as shown. Find the velocities after impact. Take mA= 3kg, mB = 2kg and e= 0.7.

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