Physics

Problem

A stubborn bolt requires a torque of

45\,\text{N}\,\cdot\,\text{m}

to loosen. You have a wrench that is

25\,\text{cm}

long, and you can pull only at an angle of

70^{\circ}

relative to the wrench handle. What minimum magnitude of force must you exert? a)

5.3\times10^{2}\,\text{N}

3.0\times10^{2}\,\text{N}

1.9\times10^{2}\,\text{N}

2.3\times10^{2}\,\text{N}