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Questions and Answers
What is the net force acting on the ball when it is at the mean position O in the bowl?
Zero
What causes the ball to start moving towards the mean position O after being released from position A?
Restoring force caused by its weight
Where does the ball get maximum speed in the bowl?
At position O
What causes the speed of the ball to decrease while it moves towards the position B?
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What happens to the ball at position B in the bowl?
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What causes the to and fro motion of the ball about the mean position O to continue in the bowl?
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Study Notes
Net Force at Mean Position O
- At the mean position O, the net force acting on the ball is zero, as the ball is in equilibrium.
Motion Towards Mean Position O
- The ball starts moving towards the mean position O after being released from position A due to the force of gravity, which pulls the ball down the curve of the bowl.
Maximum Speed in the Bowl
- The ball attains maximum speed at the lowest point of the bowl, which is the mean position O, as all the potential energy is converted into kinetic energy.
Decrease in Speed
- The speed of the ball decreases as it moves towards position B due to the conversion of kinetic energy back into potential energy as the ball climbs up the curve of the bowl.
Ball at Position B
- At position B, the ball momentarily comes to rest, as all its kinetic energy is converted back into potential energy.
To and Fro Motion
- The to and fro motion of the ball about the mean position O continues in the bowl due to the continuous conversion of potential energy into kinetic energy and vice versa, as the ball oscillates between positions A and B.
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Description
This quiz explores the simple harmonic motion of a ball placed in a bowl. It covers the behavior of the ball at different positions and the forces acting on it. The quiz delves into topics such as net force, mean position, and the motion of the ball within the bowl.
