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David hits a ball so that it travels in a circle: Observation Experiment
Aim
To find a pattern in the direction of the vector sum of the forces exerted by other objects on an object moving in a circle at constant speed.
Prior Knowledge
- Newton's Laws. Drawing free-body diagrams.
Description of the Experiment
David hits a ball with a stick so that it travels in a circle. Observe how he is hitting the ball.
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Questions
- How is David hitting the ball (direction)
- What are the objects that interact with the ball? Draw a free-body diagram for the ball at any point of its path.
- When an object moves in a circle, is its velocity changing? Assume that the speed of the bowling ball remains almost constant and find the direction of the acceleration of the ball assuming that the direction of the acceleration is the same as the direction of the velocity change vector.
