Q 1467867785.     A block of mass `1` kg is attached to one end of a spring of force constant `k = 20` N/m. The other end of the spring is attached to a fixed rigid support. This spring block system is made to oscillate on a rough horizontal surface (`mu = 0.04`). The initial displacement of the block from the equilibrium position is a` = 30` cm. How many times the block passes from the mean position before coming to rest? (`g = 10` `m// s^2`)

A

`11`

B

`7`

C

`6`

D

`15`

HINT

Decrease in elastic potential energy = Work done against friction

Today's Score

0
Success Rate: NAN %

Practice & Test

Sr. No.SubjectTagCorrectRecorded Answer