A block attached to an ideal spring oscillates horizontally on a friction-free surface

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

Problem

0.20\,\text{kg}

block attached to an ideal spring oscillates horizontally on a friction-free surface. The equilibrium position is defined as

x = 0

, and the positive x-direction is to the right. The spring constant is

k = 50\,\text{N}\,\text{m}^{-1}

. At one instant the block is located at

x = -0.040\,\text{m}

. What is the net force acting on the block at that instant? (a)

0.2\,\text{N}

to the right (b)

1.0\,\text{N}

to the right (c)

2\,\text{N}

to the right (d)

2\,\text{N}

to the left