Physics

Problem

Three forces act on a particle so that it remains at rest. The first force is

10\,\text{N}

along the positive

x

-axis. The second force is

20\,\text{N}

directed

120^{\circ}

anticlockwise from the positive

x

-axis. What is the magnitude and direction of the third force? a)

10\,\text N

along the negative

x

–axis b)

20\,\text N

along the negative

y

–axis c)

17.3\,\text N

along the negative

y

–axis d)

17.3\,\text N

along the positive

y

–axis