A child pulls a toy car of mass to the right with a horizontal force of on a…

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

Problem

A child pulls a toy car of mass

1.5\,\text{kg}

to the right with a horizontal force of

4.0\,\text{N}

on a frictionless surface. What horizontal force must another child apply to the left so that the car remains at rest? (a)

14.7\,\text{N}

(b)

4.0\,\text{N}

(c)

2.7\,\text{N}

(d)

0\,\text{N}