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1st Edition

Kevin D. Dahm + 1 other

Publisher: Cengage Learning

ISBN: 9781111580704

Chapter 1.7, Problem 20P

A)

Interpretation Introduction

**Interpretation:**

The force of gravity acting on the box has to be determined.

**Concept introduction:**

The force of gravity acting on the box:

Here, mass is *M* and acceleration is *a*.

B)

Interpretation Introduction

**Interpretation:**

The work required to lift the box from the ground to roof of the building.

**Concept introduction:**

The work required to lift the box.

Here, force is *F* and distance is *d*.

C)

Interpretation Introduction

**Interpretation:**

The potential energy of the box when it is on the roof of the building.

**Concept introduction:**

The potential energy of the box

Here, gravity is *g* and height of building is *h*.

D)

Interpretation Introduction

**Interpretation:**

The velocity and kinetic energy of box when it hits the road.

**Concept introduction:**

The kinetic energy of the box when its hits the road.

Here, velocity is *v*.