Question 322: Centre of Mass and Rotational Motion

Question

A force of $$40$$ $$N$$ acts on a point $$B$$ at the end of an $$L$$-shaped object, as shown in the figure. The angle $$	heta $$ that will produce maximum moment of the force about point $$A$$ is given by :

Accepted Answer

We can produce maximum moment of force, when line of action of force is perpendicular to line AB.
$$	herefore\,\,\,\,$$ $$	an 	heta $$ = $${2 \over 4}$$ = $${1 \over 2}$$

Answer

$$	an 	heta  = {1 \over 2}$$

Answer

$$	an 	heta  = 2$$

Answer

$$	an 	heta  = 4$$

Answer

$$	an 	heta  = {1 \over 4}$$

Centre of Mass and Rotational Motion

A force of $40 N acts on a point B at the end of an L-shaped object, as shown in the figure. The angle \theta that will produce maximum moment of the force about point A$ is given by :

Choose the correct answer: