Angular momentum of the particle rotating with a central force is constant due to

Question

Angular momentum of the particle rotating with a central force is constant due to (A) constant torque (B) constant force (C) constant linear momentum (D) zero torque

Tardigrade Admin · Accepted Answer

Torque due to central force is zero. As τ=(dL/dt)=0 ∴ L = constant

Q. Angular momentum of the particle rotating with a central force is constant due to

constant torque

constant force

constant linear momentum

zero torque

Torque due to central force is zero.
As $τ = \frac{d L}{d t} = 0$
$∴ L =$ constant

Q. Angular momentum of the particle rotating with a central force is constant due to

constant torque

constant force

constant linear momentum

zero torque

Torque due to central force is zero. As τ=dtdL​=0 ∴L= constant

Torque due to central force is zero.
As $τ = \frac{d L}{d t} = 0$
$∴ L =$ constant