# A spring is mounted horizontally. A crate that has a mass of 8.5 kg is pressed against the spring...

## Question:

A spring is mounted horizontally. A crate that has a mass of 8.5 kg is pressed against the spring with a force of 350 N. As a result, the spring is compressed a distance of 82.0 cm. The mass is then released and is allowed to slide along the horizontal, frictionless surface. What will be the velocity of the crate after it has left the spring? How far will the mass slide before it comes to a halt?

## Work-Energy Theorem:

Consider a police car moving on the road. In this illustration, the work done between any two points will be equal to the change in the kinetic energy measured between these two points.

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Given data:

• Mass of the crate, {eq}m = 8.5 \ kg {/eq}
• Force, {eq}F = 350 \ \rm N {/eq}
• Compression in the spring, {eq}x = 82.0 \ cm = 0.82 \...

Work-Energy Theorem: Definition and Application

from

Chapter 8 / Lesson 7
28K

Work and energy are closely related in physics. In this lesson, you'll learn what that relationship is as well as how we can apply it to various situations.