A smooth sphere A is moving on a frictionless | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Since the spheres are smooth,there is no friction between them during the collision.Friction is the only source of torque that could change the an

Vedclass · Accepted Answer

$\omega_A = \omega$

Vedclass · Answer

(C) Since the spheres are smooth,there is no friction between them during the collision.Friction is the only source of torque that could change the angular momentum of a sphere about its center of mass.Because there is no friction,there is no torque acting on either sphere.Consequently,the angular momentum of each sphere remains constant.For sphere $A$,the initial angular momentum is $L_A = I\omega$. Since no torque acts on it,its final angular momentum remains $I\omega_A = I\omega$,which implies $\omega_A = \omega$.For sphere $B$,which was initially at rest,its initial angular momentum is $0$. Since no torque acts on it,its final angular momentum remains $0$,which implies $\omega_B = 0$.

Similar Questions

$A$ ball of mass $m$ collides elastically with an identical ball at rest with some impact parameter.

$A$ body of mass $m$ moving with velocity $v$ collides with a stationary body of mass $2m$. The fraction of kinetic energy lost by the body of mass $m$ is:

$A$ particle $P$ moving with speed $v$ undergoes a head-on elastic collision with another particle $Q$ of identical mass but at rest. After the collision:

$A$ ball of mass $m$ moving with velocity $V$ makes a head-on elastic collision with a ball of the same mass moving with velocity $2V$ towards it. Taking the direction of $V$ as positive,the velocities of the two balls after the collision are:

Vedclass Test Series

Exam Paper Generator

Online Exam Module