Select True or False to each of the following statements about collisions. In or

Question

Select True or False to each of the following statements about collisions. In order to receive credit for this question you must answer ALL statements correctly.
True False  In a perfectly inelastic collision, total momentum is conserved.
True False  If two objects undergo a perfectly inelastic collision, they stick together after the collision.
True False  In an elastic collision, total momentum is conserved.
True False  In a perfectly inelastic collision, total energy is conserved.
True False  In a perfectly inelastic collision, kinetic energy is conserved.

Explanation / Answer

An elastic collision is defined as one in which both conservation of momentum and conservation of kinetic energy are observed.
A perfectly inelastic collision is one in which the maximum amount of kinetic energy has been lost during a collision, though Total Energy is Conserved as stated by the general principle of conservation of energy.Momentum is conserved during inelastic collision.

The Answers to the questions are -

In a perfectly inelastic collision, total momentum is conserved - TRUE.
If two objects undergo a perfectly inelastic collision, they stick together after the collision - TRUE
In an elastic collision, total momentum is conserved - TRUE.
In a perfectly inelastic collision, total energy is conserved - TRUE.
In a perfectly inelastic collision, kinetic energy is conserved - FALSE

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