A marble of mass travelling at is directly followed by another marble of mass with double speed. After collision, the heavier one travels with the average initial speed of the two. Calculate the coefficient of restitution.
Important Questions on Laws of Motion
Four uniform solid cubes of edges are kept on the ground, touching each other in order. Locate centre of mass of their system.
A uniform solid sphere of radius has a hole of radius drilled inside it. One end of the hole is at the centre of the sphere while the other is at the boundary Locate centre of mass of the remaining
In the following table, every item on the left side can match with any number of items on the right hand side. Select all those
| Type of collision | Illustration |
|
(a) Elastic collision (b) Inelastic collision (c) Perfectly inelastic collision (d) Head on collision |
(i) A ball hit by a bat. (ii) Molecular collisions responsible for pressure exerted by a gas. (III) A stationary marble A is hit by marble B and the marble B comes to rest (iv) A blob of clay dropped on the ground sticks to the ground. (v) Out of anger, giving a kick to a wall. (vi) A striker hits the boundary of a carrom board in a direction perpendicular to the boundary and rebounds. |
