An ideal massless spring can be compressed in equilibrium by a force of

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

An ideal massless spring can be compressed

1.0\ \text{m}

in equilibrium by a force of

100\ \text{N}

. The spring is placed at the bottom of a frictionless inclined plane at

\theta=30^\circ

to the horizontal. A

10\ \text{kg}

mass is released from rest at the top and comes momentarily to rest after compressing the spring by

2.0\ \text{m}

. The distance through which the mass moves before coming to rest is (1)

8\ \text{m}

(2)

6\ \text{m}

(3)

4\ \text{m}

(4)

5\ \text{m}