Question 371: Centre of Mass and Rotational Motion

Question

A force of $$ - F\widehat k$$ acts on $$O,$$ the  origin of the coordinate system. The torque about the point $$(1, -1)$$ is

Accepted Answer

We know, Torque $$\overrightarrow 	au  = \overrightarrow r  	imes \overrightarrow F  $$
$$= \left( {\widehat i - \widehat j} ight) 	imes \left( { - F\widehat k} ight) $$
$$=  F\left( {\widehat i + \widehat j} ight)$$

Answer

$$F\left( {\widehat i - \widehat j} \right)$$

Answer

$$ - F\left( {\widehat i + \widehat j} \right)$$

Answer

$$F\left( {\widehat i + \widehat j} \right)$$

Answer

$$ - F\left( {\widehat i - \widehat j} \right)$$

Centre of Mass and Rotational Motion

A force of $ - F\widehat k acts on O, the origin of the coordinate system. The torque about the point (1, -1)$ is

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