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### Question 32:
Marla pushes a box across the garage using a force of 5 N and moves it a distance of 3 m. The question asks how much work Marla did.

**Work (W)** is calculated using the formula:
\[
W = F \times d
\]
Where:
- \( F \) is the force applied (in newtons),
- \( d \) is the distance moved (in meters).

Given:
- \( F = 5 \, \text{N} \),
- \( d = 3 \, \text{m} \),

We substitute into the formula:
\[
W = 5 \, \text{N} \times 3 \, \text{m} = 15 \, \text{J}
\]

So, **the answer is B: 15 J**.

### Question 33:
Justin grabs his backpack using 2 N of force, but the backpack does not move. The question asks if Justin did any work on the backpack.

Since work depends on both force and movement, if the backpack doesn't move, no work is done.

The formula for work is:
\[
W = F \times d
\]
Where:
- \( d = 0 \, \text{m} \), because the backpack did not move.

Thus:
\[
W = 2 \, \text{N} \times 0 = 0 \, \text{J}
\]

So, **the answer is B: No**.

Would you like more details or explanations on these? Here are 5 related questions you might be interested in:

1. What are other examples of calculating work in physics?
2. How does the angle of applied force affect the work done?
3. What is the relationship between energy and work?
4. Can you explain the concept of power in physics?
5. How is work calculated if the force is not constant?

**Tip:** Always check whether an object has moved when calculating work, as no movement means no work is done regardless of the applied force!

Marla pushes a box across the garage using a force of 5 N and moves it a distance of 3 m. How much work did she complete?
Justin grabs his backpack using 2 N of force, but his backpack is stuck on the chair and does not move. Did Justin do any work on the backpack?

Explore how to calculate work in physics using real-world examples. Marla pushes a box with a force of 5 N over a distance of 3 m, resulting in 15 J of work. Also, learn why no work is done when force is applied but there is no movement. Suitable for students in Grades 6-8.

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