Force and Motion Problems: Solutions and Calculations
Force and Motion: Solved Problems
Strength: solutions
Problem 1
A body with a mass of 600 kg accelerates at 1.2 m/s². What force caused this acceleration?
Data:
- m = 600 kg
- a = 1.2 m/s²
Solution:
F = ma = 600 kg * 1.2 m/s² = 720 N
Problem 2
What mass must a body have for a force of 588 N to accelerate it at 9.8 m/s²?
Data:
- F = 588 N
- a = 9.8 m/s²
Solution:
m = F / a = 588 N / 9.8 m/s² = 60 kg
Problem 3
A 250 kg body is subjected to two opposing forces: 5880 N to the right and 5000 N to the left. What is the
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Ferrimagnetism vs. Antiferromagnetism
| Property | Ferrimagnetism | Antiferromagnetism |
|---|---|---|
| Magnetic Moment Alignment | Opposing magnetic moments are aligned but unequal in size, resulting in a net magnetic moment. | Opposing magnetic moments are equal and aligned, leading to cancellation of the net magnetic moment. |
| Net Magnetization | Has a net magnetization due to unequal opposing magnetic moments. | No net magnetization as opposing moments cancel each other out. |
| Examples of Materials | Magnetite (Fe3O4), Strontium ferrite ( |
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2. Why Does Everybody Think Adrian is Addicted to Glue?
Everybody thinks that Adrian is addicted to glue because Barry Kent has been spreading this rumor since his aunt worked in the hospital where Adrian was treated.
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**Concept of Electric Charge**
Electric charge is a fundamental property of matter. In nature, there are only two types of charges: positive (+) and negative (-). Electric charge is a scalar quantity and is measured in Coulombs (C). Attractive forces exist between bodies with opposite charges, while repulsive forces exist between bodies with the same charge. Matter consists of electrons and protons. The magnitude of the charge on both particles is the same. Protons are located in the nucleus, and
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Sum of Non-Concurrent Parallel Forces
The point of application of the two forces differs. When forces are parallel in the same direction, we add the two modules of the two forces: R = F1 + F2. The direction is parallel to the line of the two forces, and their meaning is the same as that of the two forces.
To know the position of point P, at which point your application is now, we can show that the following is met: F1 * x = F2 * (d – x). Where:
- x is the distance separating the point P resulting from