In each of the following situations, identify the force that provides the centripetal acceleration. You may use the same force more than once, if appropriate. Question 8 options: A ball on a string is spun in a horizontal circle A ball rolls inside a ring The moon orbits the earth Laundry spins in a washing machine 1. Normal force 2. Tension force 3. Gravitational force 4. Friction force
In each of the following situations, identify the force that provides the centripetal acceleration.
You may use the same force more than once, if appropriate.
Question 8 options:
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A ball on a string is spun in a horizontal circle will have
- Tension Force
- Gravitational Force
- Normal Force
- Frictional Force
Due to tension, force exerted by the string the ball keeps moving in a circular path. It always acts radially inward i.e towards the center of the circle provides centripetal force to move in circular path.
The gravitational force acts vertically downward and counter balances the normal force and can influence the weight of the ball. The normal force directly will not affect the circular motion but it is necessary to support the balls weight.
Frictional force comes into play, if there is any friction between the ball and the surface which it is spinning. The frictional force opposes the motion of the ball and its velocity may decrease. If there is no friction then it is negligible.
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