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A block of mass 2 kg is connected with a...

A block of mass `2 kg` is connected with a spring of natural length `40 cm` of force constant `K=200 N//m`. The cofficient of friction is `mu=0.5`. When released from the given position, acceleration of block will be

A

zero

B

`2 m//s^(2)`

C

`6 m//s^(2)`

D

`8 m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C

`kx=20N`,`N_(1)=8N`,
`f=4N`,`a=(16-4)/(2)=6 m//s^(2)`
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