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podryga [215]
3 years ago
15

A.

Physics
1 answer:
Aliun [14]3 years ago
6 0

Answer:

the correct answer is c, they will accelerate away from each other at different speeds. the 80kg will go faster due to less mass

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Answer: a) 4.7 mi/hr.  b) 86,500 lbs. mi²/Hr²

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Before the collision, the total kinetic energy of the system was the following:

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So we have an Energy loss, equal to the difference between initial kinetic energy and final kinetic energy, as follows:

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This loss is due to the impact, and is represented by the work done by friction forces (internal) during the impact.

8 0
3 years ago
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