(b) Which object or objects have the largest magnitude of force? (Select all that apply.) O () (ii) O (ii) (iv) Consider the rules for vector addition. (c) Which object or objects move with constant velocity? (Select all that apply.) (i) O (ii) O (iii) O (iv) (d) Which object or objects move with changing speed? (Select all that apply.) O (i) (ii) O (ii) (iv)

College Physics
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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questions b and d i can’t figure out
### Physics Problem Set

#### Questions and Answers

**(b) Which object or objects have the largest magnitude of force? (Select all that apply.)**

- [ ] (i)
- [x] (ii)
- [ ] (iii)
- [x] (iv)

*Feedback:* Consider the rules for vector addition.

**(c) Which object or objects move with constant velocity? (Select all that apply.)**

- [x] (i)
- [ ] (ii)
- [ ] (iii)
- [ ] (iv)

*Feedback:* Correct selection.

**(d) Which object or objects move with changing speed? (Select all that apply.)**

- [ ] (i)
- [x] (ii)
- [ ] (iii)
- [ ] (iv)

*Feedback:* Incorrect selection.

#### Additional Concept Reinforcement

**What is the basic premise of Newton's First Law?**

*Newton's First Law, also known as the law of inertia, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.*

Feel free to use these questions to test your understanding of the concepts of force, velocity, and Newton's Laws of Motion.
Transcribed Image Text:### Physics Problem Set #### Questions and Answers **(b) Which object or objects have the largest magnitude of force? (Select all that apply.)** - [ ] (i) - [x] (ii) - [ ] (iii) - [x] (iv) *Feedback:* Consider the rules for vector addition. **(c) Which object or objects move with constant velocity? (Select all that apply.)** - [x] (i) - [ ] (ii) - [ ] (iii) - [ ] (iv) *Feedback:* Correct selection. **(d) Which object or objects move with changing speed? (Select all that apply.)** - [ ] (i) - [x] (ii) - [ ] (iii) - [ ] (iv) *Feedback:* Incorrect selection. #### Additional Concept Reinforcement **What is the basic premise of Newton's First Law?** *Newton's First Law, also known as the law of inertia, states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.* Feel free to use these questions to test your understanding of the concepts of force, velocity, and Newton's Laws of Motion.
### Forces Acting on a Particle

The image represents four different scenarios in which forces act upon a particle. Each scenario is depicted with arrows indicating the direction and relative magnitude of the forces. Let's break down each scenario:

#### Scenario (i)

In this diagram, two forces, both labeled \( F \), act on a particle. The forces are applied in opposite directions along a horizontal line. The force vectors are equally sized but point opposite each other, leading to a state of equilibrium where the net force on the particle is zero.

| ![](i) |
|--|
| \[F\]\[●\]\[F\] |

#### Scenario (ii)

Here, two forces (each labeled \( F \)) are acting on a particle at an angle of 135 degrees relative to each other. One force is directed upward to the left and the other downward to the right. The angle between the two forces suggests that they will not cancel each other out completely, resulting in a resultant force that can be calculated using vector addition.

| ![](ii) |
|--|
| \[F\] \ \[135°\] \ [F\] | 
|   \__ \[●\] |

#### Scenario (iii)

In this configuration, two forces are acting perpendicularly on a particle. One force \( F \) is directed horizontally to the left and the other \( F \) is directed vertically downward. The net force will be the vector sum of these two orthogonal forces, resulting in a diagonal force.

| ![](iii) |
|--|
| \[▲\(F\)\]\[●\]\[►\(F\)\] |

#### Scenario (iv)

In this last scenario, forces with magnitudes \( F \) and \( 2F \) are both applied horizontally but in opposite directions on the particle. The particle will experience a net force directed to the right because the force \( 2F \) is greater than force \( F \). The magnitude of the resultant force will be \( F \) (since \( 2F - F = F \)).

| ![](iv) |
|--|
| \[F\]\[●\]\[2F\] |

### Summary
These diagrams illustrate how different arrangements of forces acting on a particle result in different net forces. Understanding these basic principles of vector addition and equilibrium is important in the study of mechanics and physics.
Transcribed Image Text:### Forces Acting on a Particle The image represents four different scenarios in which forces act upon a particle. Each scenario is depicted with arrows indicating the direction and relative magnitude of the forces. Let's break down each scenario: #### Scenario (i) In this diagram, two forces, both labeled \( F \), act on a particle. The forces are applied in opposite directions along a horizontal line. The force vectors are equally sized but point opposite each other, leading to a state of equilibrium where the net force on the particle is zero. | ![](i) | |--| | \[F\]\[●\]\[F\] | #### Scenario (ii) Here, two forces (each labeled \( F \)) are acting on a particle at an angle of 135 degrees relative to each other. One force is directed upward to the left and the other downward to the right. The angle between the two forces suggests that they will not cancel each other out completely, resulting in a resultant force that can be calculated using vector addition. | ![](ii) | |--| | \[F\] \ \[135°\] \ [F\] | | \__ \[●\] | #### Scenario (iii) In this configuration, two forces are acting perpendicularly on a particle. One force \( F \) is directed horizontally to the left and the other \( F \) is directed vertically downward. The net force will be the vector sum of these two orthogonal forces, resulting in a diagonal force. | ![](iii) | |--| | \[▲\(F\)\]\[●\]\[►\(F\)\] | #### Scenario (iv) In this last scenario, forces with magnitudes \( F \) and \( 2F \) are both applied horizontally but in opposite directions on the particle. The particle will experience a net force directed to the right because the force \( 2F \) is greater than force \( F \). The magnitude of the resultant force will be \( F \) (since \( 2F - F = F \)). | ![](iv) | |--| | \[F\]\[●\]\[2F\] | ### Summary These diagrams illustrate how different arrangements of forces acting on a particle result in different net forces. Understanding these basic principles of vector addition and equilibrium is important in the study of mechanics and physics.
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