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Q.59

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 230

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Short Answer

A horizontal spring with spring constant is compressed by and then used to launch a box across the floor. The coefficient of kinetic friction between the box and the floor is . What is the box’s launch speed?

The launch speed of the box is .

See the step by step solution

Step by Step Solution

Step 1: Content Introduction

The work energy theorem is

Considering the following diagram,

The force of kinetic friction is

The net force on the mass is calculated as:

Therefore, the total work done on the box during the launch is :

Step 2: Content Explanation

Now apply the work energy theorem,

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