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Physics / Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 3 / Chapter 12 / Problem 18E

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight

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Section 12.5 TorqueIn FIGURE, what is the net torque about

Chapter 12, Problem 18E

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QUESTION:

In Figure EX12.18, what is the net torque about the axle?

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QUESTION:

In Figure EX12.18, what is the net torque about the axle?

ANSWER:

Solution 18E

Step 1 of 3

Here we need to calculate the net torque about the axle for the given pulley.

Torque is defined as the cross product of force and radial(arm) vector, it is given by

$\tau{}=\overline{F}\times{}\overline{r}$

$\tau{}=F\ r\ sin\ \theta{}$ ……….1

Where $\theta{}$ is the angle made from radial vector to force vector.

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