JEE 2022 | Center of Mass And Collision | Dravyaman Kendra Aur Sanghat | Phsyics

Center Of Mass - Momentum & Collision|Motion Of COM

A thin uniform bar of length L and mass 8m lies on a smooth horizontal table .Two point masses m and 2 m are moving in the same horizontal plane from opposite sides of the bar with speeds 2v and v respectively .The masses stick to the bar after collision at a distances (L)/(3) and (L)/(6) respectively from the center of the bar if the bar starts rotating about its center of mass as result of collision the angular speed of the bar will be

Challenging Problems in Impulse, Collisions & Center of Mass

Challenging Problems in Impulse, Collisions & Center of Mass

A smooth tunnel is dug along the radius of earth that ends at centre. A ball is relrased from the surface of earth along tunnel. Caefficient of restitution for collision between soil at centre and ball is 0.5 . Caculate the distance travelled by ball just second collision at center. Given mass of the earth is M and radius of the earth is R .

A hollow sphere of mass M lies on a rough horizontal plane when a particle of mass m traveling with speed v collides and sticks with it. If line of motion of the particle is at height h above the center of sphere, find h if the body rolls without slipping after collision ( m lt lt M ).