A block slides on a smooth horizontal table

PHYSICS · Single correct · GCSE · Physics · Forces · Forces

Problem

A block slides

3\,\text{m}

on a smooth horizontal table. Ignoring air resistance, what is the work done by the normal reaction of the table on the block? (a)

mg\times 3\,\text{J}

(b) Cannot be determined without knowing

m

(c)

0\,\text{J}

(d)

-mg\times 3\,\text{J}