Physics

Problem

A lightweight horizontal beam

3\,\text{m}

long is pinned to a wall at its left end. A

50\,\text{N}

upward force is applied at the right end. About which one of the following pivot locations on the beam would the torque of the

50\,\text{N}

force be zero? a) At the wall pin,

0\,\text{m}

from the left end b) At the right end,

3.0\,\text{m}

from the left end c) At the midpoint,

1.5\,\text{m}

from the left end d) At a point

1.0\,\text{m}

from the left end