Question 56: Centre of Mass and Rotational Motion

Question

Newton's second law of rotational motion of a system particles having angular momentum L is given by

Accepted Answer

The external torque changes the angular momentum, therefore the second law in rotational motion is given by,
$${	au _{ext}} = {{dL} \over {dt}}$$

Answer

$${{dp} \over {dt}} = {	au _{ext}}$$

Answer

$${{dL} \over {dt}} = {	au _{{\mathop{m int}} }}$$

Answer

$${{dL} \over {dt}} = {	au _{ext}}$$

Answer

$${{dL} \over {dt}} = {	au _{{\mathop{m int}} }} + {	au _{ext}}$$

Centre of Mass and Rotational Motion