If torque is zero then:

Question

If torque is zero then: (A) angular momentum is conserved (B) linear momentum is conserved (C) energy is conserved (D) angular momentum is not conserved

Tardigrade Admin · Accepted Answer

Torque is the rate of change of angular momentum. That is, τ=(d L/d t) If torque (τ) is zero, then (d L/d t)=0 or L = constant i.e., angular momentum of the system is conserved.

Q. If torque is zero then:

angular momentum is conserved

linear momentum is conserved

energy is conserved

angular momentum is not conserved

Torque is the rate of change of angular momentum. That is, $τ = \frac{d L}{d t}$
If torque $(τ)$ is zero, then $\frac{d L}{d t} = 0$
or $L =$ constant
i.e., angular momentum of the system is conserved.

Q. If torque is zero then:

angular momentum is conserved

linear momentum is conserved

energy is conserved

angular momentum is not conserved

Torque is the rate of change of angular momentum. That is, τ=dtdL​ If torque (τ) is zero, then dtdL​=0 or L= constant i.e., angular momentum of the system is conserved.

Torque is the rate of change of angular momentum. That is, $τ = \frac{d L}{d t}$
If torque $(τ)$ is zero, then $\frac{d L}{d t} = 0$
or $L =$ constant
i.e., angular momentum of the system is conserved.