Two ideal springs with force constants and are connected in series to a block on a…

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

Two ideal springs with force constants

100\,\text{N\,m}^{-1}

and

200\,\text{N\,m}^{-1}

are connected in series to a

1\,\text{kg}

block on a frictionless horizontal surface. The system is pulled so that the block is displaced

0.15\,\text{m}

from its equilibrium position and then released from rest. What is the maximum speed attained by the block? (a)

1.50\,\text{m\,s}^{-1}

(b)

2.60\,\text{m\,s}^{-1}

(c)

1.22\,\text{m\,s}^{-1}

(d)

0.87\,\text{m\,s}^{-1}