Question

A solid cylinder of mass m is rolling on a rough horizontal surface with velocity v. It collides
elastically with a cubical block of same mass at rest. The height of centre of mass of both the
bodies is same. Assume that there is no friction between the cylinder and the block and
coefficient of friction between all other surfaces is u,
The velocity of block when cylinder starts pure rolling again is
3
The velocity of block when cylinder starts pure rolling again is
3
(√5 + 1)v.
time after first collision at which the second collision will take place is
3ug
(√5 + 2) vo
time after first collision at which the second collision will take place is
3ug​

Answer 1

Grit chambers are long narrow tanks that are designed to slow down the flow so that solids such as sand, coffee grounds, and eggshells will settle out of the water. Grit causes excessive wear and tear on pumps and other plant equipment.