Physics

Problem

A particle of mass

0.50\,\text{kg}

starts from rest and is pushed in a straight line for

4.0\,\text{m}

by a constant force that acts at

30^{\circ}

to the direction of motion. At the end of the push, the particle’s speed is

10\,\text{m}\,\text{s}^{-1}

. Calculate the magnitude of the force. a)

12.5\,\text{N}

6.3\,\text{N}

7.2\,\text{N}

14.4\,\text{N}