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Home » Answer carefully, with reasons :(a) In an inelastic collision of two billiard balls, is the total kinetic energy conserved during the short time of collision of the balls (i.e. when they are in contact)?Is the total linear momentum conserved during the short time of an inelastic collision of two balls?(b) If the potential energy of two billiard balls depends only on the separation distance between their centres, is the collision elastic or inelastic? (Note, we are talking here of potential energy corresponding to the force during a collision, not gravitational potential energy).
Answer carefully, with reasons :
(a) In an inelastic collision of two billiard balls, is the total kinetic energy conserved during the short time of collision of the balls (i.e. when they are in contact)?
Is the total linear momentum conserved during the short time of an inelastic collision of two balls?
(b) If the potential energy of two billiard balls depends only on the separation distance between their centres, is the collision elastic or inelastic? (Note, we are talking here of potential energy corresponding to the force during a collision, not gravitational potential energy).
CBSE | Class 11 | NCERT | Physics | Work, Energy, and Power
Answer carefully, with reasons :
(a) In an inelastic collision of two billiard balls, is the total kinetic energy conserved during the short time of collision of the balls (i.e. when they are in contact)?
Is the total linear momentum conserved during the short time of an inelastic collision of two balls?
(b) If the potential energy of two billiard balls depends only on the separation distance between their centres, is the collision elastic or inelastic? (Note, we are talking here of potential energy corresponding to the force during a collision, not gravitational potential energy).

(a) In an inelastic collision, there will be a loss of kinetic energy. After a collision, the K.E is always lower than the K.E before the impact.

In an inelastic collision, the system’s total linear momentum is also conserved.

(b) Because the forces involved are conservative, it is an elastic collision. It is determined by the distance between the billiard balls’ centers.

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