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A block of mass  is released from rest at point . The compression in spring (force constant ) when the speed of block is maximum is found to be . What should be the value of ?


Question ID - 153900 :-

A block of mass  is released from rest at point . The compression in spring (force constant ) when the speed of block is maximum is found to be . What should be the value of ?

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Answer Key : (4) -

(4)

Speed of block will be maximum when

Where  is compression. So



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A block of mass  is attached to a spring of force-constant . The coefficient of friction between the block and the floor is 0.1. Initially the block is at rest and the spring is un-stretched. An impulse is given to the block as shown in the figure. The block slides a distance of  and comes to rest for the first time. The initial velocity of the block in  is . Then  is


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