Consider four types of collisions: inelastic, totally inelastic, elastic and exp

Question

Consider four types of collisions: inelastic, totally inelastic, elastic and explosive. (a) For which of these collision types is total linear momentum conserved? Do you need anything special for the momentum to stay constant? Explain! (b) For which of these types of collisions is kinetic energy the same before and after the collision? For each type, if the final kinetic energy is different than the initial, state whether kinetic energy has increased or decreased, and what other types of energy might have changed.

Explanation / Answer

(a) The linear momentum is conserved for all type of collision if net external force is zero in any collision.Only net external force to be zero is necessary condition for conservation of momentum

(b)The kinetic energy is conserved is elastic collsion while kinetic energy is reduced in inelastc collision while kinetic energy is increased in explosive collison

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