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Consider the following statements: If th...

Consider the following statements: If the net external torque acting on an object is switched off, then -
1. Linear momentum will remain unchanged.
2. Angular momentum will remain unchanged. Which of the statements given above is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Text Solution

Verified by Experts

The correct Answer is:
B
The net external torque `(tau)` is defined as the rate of change of angular momentum `(vecL).` That is
`vectau=(dvecL)/(dt)`
Thus, if vectau becomes zero, `vecL` remains constant.
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