Difference between revisions of "Balanced Forces"
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| style="height:20px; width:200px; text-align:center;" | | | style="height:20px; width:200px; text-align:center;" | | ||
+ | <math>F_R = F_{up} - F_{down}</math> | ||
+ | |||
+ | <math>F_R = 3 - 3</math> | ||
+ | |||
+ | <math>F_R = 0N</math> | ||
+ | |||
+ | The [[force]]s are '''balanced'''. | ||
| style="height:20px; width:200px; text-align:center;" | | | style="height:20px; width:200px; text-align:center;" | | ||
+ | <math>F_R = F_{right} - F_{left}</math> | ||
+ | |||
+ | <math>F_R = 80 - 80</math> | ||
+ | |||
+ | <math>F_R = 0N</math> | ||
+ | |||
+ | The [[force]]s are '''balanced'''. | ||
| style="height:20px; width:200px; text-align:center;" | | | style="height:20px; width:200px; text-align:center;" | | ||
+ | <math>F_{Horiztonal} = F_{right} - F_{left}</math> | ||
+ | |||
+ | <math>F_R = 40 - 40</math> | ||
+ | |||
+ | <math>F_R = 0N</math> | ||
+ | |||
+ | <math>F_{Vertical} = F_{up} - F_{down}</math> | ||
+ | |||
+ | <math>F_R = 38 - 38</math> | ||
+ | |||
+ | <math>F_R = 0N</math> | ||
+ | |||
+ | The [[force]]s are '''balanced'''. | ||
|} | |} |
Revision as of 15:06, 6 February 2019
Contents
Key Stage 3
Meaning
Balanced Forces are forces that are the same strength but acting in opposite directions.
About Balanced Forces
The 7N up is balanced by the 7N down. | The 4N left is balanced by the 4N right. | The 6N up is balanced by the 6N down and the 5N left is balanced by the 5N right. |
Key Stage 4
Meaning
Balanced forces are force vectors which add together to make 0N resultant force.
About Balanced Forces
- When forces on an object are balanced there is no acceleration (change speed or direction).
- Balanced forces are related to Newton's First Law of motion:
- An object in motion will tend to stay in motion and an object at rest will tend to stay at rest unless an unbalanced force acts upon it.
- If the resultant force on an object is zero, then the forces are balanced.
Examples
\(F_R = F_{up} - F_{down}\) \(F_R = 3 - 3\) \(F_R = 0N\) The forces are balanced. |
\(F_R = F_{right} - F_{left}\) \(F_R = 80 - 80\) \(F_R = 0N\) The forces are balanced. |
\(F_{Horiztonal} = F_{right} - F_{left}\) \(F_R = 40 - 40\) \(F_R = 0N\) \(F_{Vertical} = F_{up} - F_{down}\) \(F_R = 38 - 38\) \(F_R = 0N\) The forces are balanced. |