   Chapter 6, Problem 8CQ

Chapter
Section
Textbook Problem

(a) If two automobiles collide, they usually do not stick together. Does this mean the collision is elastic? (b) Explain why a head-on collision is likely to be more dangerous than other types of collisions.

(a)

To determine
Is it elastic collision.

Explanation

Given Info: Two automobiles collide without sticking together.

Explanation:

An elastic collision is defined as one in which both momentum and kinetic energy are conserved.

An inelastic collision is defined as one in which momentum is conserved but kinetic energy is not.

In a perfectly inelastic collection, momentum is conserved, kinetic energy is not and the two objects stick together after the collision, so their final velocities are the same...

(b)

To determine
Head-on collision is dangerous.

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