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6 Cards in this Set
- Front
- Back
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What is the angular velocity? |
The angle covered in the circle in unit time (rad-1) |
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In what direction does the Centripetal force always act? |
A Centripetal force, always acts towards the centre of the circle |
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When an object is about to lift off and/or feels weightless, what is the magnitude of the normal reaction force? |
When the object is about to lift off or feels weightless, normal reaction force is zero |
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Define an angle in radians? |
The angle in radians, is defined as the arc length divided by the radius of the circle |
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Objects travelling in circles are always? |
Objects travelling in circles are always accelerating, due to their velocity constantly changing (as their direction is constantly changing) |
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What does the centripetal force do? |
The centripetal force keeps the object moving in a circle |
