Torque Due to Weight Video Lessons

Concept

# Problem: Consider a rigid steel beam of length L = 14.5 m and mass m = 380 kg resting on two supports, one at each end. A worker of mass m, = 62 kg sits on the beam at a distance x from support A. Refer to the figureWhen the worker sits at a distance x = 2.5 m from support A, calculate the force, in newtons, that support B must exert on the beam in order for it to remain at rest. Use g with three significant figures

###### FREE Expert Solution

Torque:

$\overline{){\mathbf{\tau }}{\mathbf{=}}{\mathbf{r}}{\mathbf{·}}{\mathbf{F}}{\mathbf{s}}{\mathbf{i}}{\mathbf{n}}{\mathbf{\theta }}}$

At rest:

Στ = 0

Take counterclockwise torque as positive.

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###### Problem Details

Consider a rigid steel beam of length L = 14.5 m and mass m = 380 kg resting on two supports, one at each end. A worker of mass m, = 62 kg sits on the beam at a distance x from support A. Refer to the figure

When the worker sits at a distance x = 2.5 m from support A, calculate the force, in newtons, that support B must exert on the beam in order for it to remain at rest. Use g with three significant figures

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Torque Due to Weight concept. You can view video lessons to learn Torque Due to Weight. Or if you need more Torque Due to Weight practice, you can also practice Torque Due to Weight practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Covault's class at CASE.