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A particle of mass m=1kg is dropped from...

A particle of mass `m=1kg` is dropped from a height `h=40cm` on a light horizontal platform fixed to one end of an elastic spring, the other being fixed to a base. The particle collides with the platform and sticks to it. As a result, the spring is compressed by an amount `x=10cm`. What is the force constant of the spring?
(Take `g=10ms^(-2)`)

A

`"600 N m"^(-1)`

B

`"800 N m"^(-1)`

C

`"1000 N m"^(-1)`

D

`"1200 N m"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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