A block of mass slides down a rough track from a height and then compresses an ideal…

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

Problem

A block of mass

m

slides down a rough track from a height

h

and then compresses an ideal spring by a distance

x

. If

x_{0}

is the compression obtained when the track is perfectly smooth, which of the following is true? (a)

x = x_{0}

(b)

x < x_{0}

(c)

x > x_{0}

(d) The relation depends on the shape of the track