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Grade 10General Physics

a plank of mass 5kg is placed on a frictionless horizontal table. further a block of mass 2kg is placed over the plank. A mass-less spring of natural length 2m is fixed to the plank by its one end. The other end of spring is compressed by the block by half of its springs natural length. The system is now released from the rest. What is the velocity of the plank when block leaves the plank?

Navjyot Kalra

12 Years agoGrade 10

1 Answer

Shobhit Varshney

11 Years ago

Dear student,

In this question, use conservation of energy principle.
Potential energy stored inthe spring = Kinetic energy of the system afer it is released.
Find the speed then.......................................................................................

Thanks,

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