# Kinetic energy

Compared to a car moving at 10 miles per hour, how much kinetic energy does that same car have when it moves at 20 miles per hour? At 30 miles per hour? At 60 miles per hour? What do these numbers suggest to you about the difficulty of stopping a car as its speed increases?

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Compared to a car moving at 10 miles per hour, how much kinetic energy does that same car have when it moves at 20 miles er hour? At 30 miles per hour? At 60 miles per hour? What do these numbers suggest to you about the difficulty of stopping a car as its speed increases?

The energy of a body or a system is the ability of doing work by the body.

It is the measured by the work stored in the body in some form so that we may get that much work from the body.

The kinetic energy of a body is the amount of ...

#### Solution Summary

Kinetic energy is calculated and stopping is discussed. The numbers you suggest for a difficulty of stopping a car as its speed increases is determined.