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nickb145

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## Homework Statement

A 17m long ladder is mounted on a fire truck. The ladder itself has mass 130kg , and at the top is a 37kg basket holding a 83kg firefighter.

If the ladder makes a 60∘ angle with the horizontal, what's the magnitude of the net torque about the ladder's base?

## Homework Equations

I think center of mass (X1M1+X2M2+X3M3)/(m1+m2+m3)

Torue=rFsinθ

## The Attempt at a Solution

I get a huge number when i try it out. But since is is asking about the ladders base, would it the sine change to cosine?

I take the torque from the mass at the end and the torque of the ladder to get the net torque. Kind of stuck.

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