Constant Backward Force
Definition:
- Backward Force: A push or a pull in the OPPOSITE direction that the object is moving
Hypothesis:
- Scenario 1: What will happen to the velocity of the ball if Mr. Ozeni gives the ball a constant backward force with the blow dryer? Why?
The velocity of the ball will decrease, because the blow dryer is acting as a resistance from the object moving forward at a fast pace, if at all. The ball will most likely slow down because of the constant force from the blow dryer, which is going in the opposite direction.
- Scenario 2: What will happen to the velocity of the car if Mr. Ozeni launches the car with the fan turned backwards so the fan is giving a constant backwards force? Why?
The velocity of the car will decrease as well, for the same reasons as the first scenario. The fan will act as a constant backwards force, acting as a resistance for any increase in speed, and the continuation of said force will cause it to eventually come to a complete stop.
Results:
Metal Ball and Blow dryer
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Car with Fan
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The ball slowed down until it came to a complete stop.
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The car slowed down until it came to a complete stop.
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Data Analysis/Discussion:
| Metal ball with blow dryer |
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Summary:
How does a constant backward force affect the velocity of an object?
Summary
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In our experiments we observed the results of having applied a constant backwards force to two different objects. It was unanimously concluded that both objects decreased in velocity until coming to a complete stop. The first experiment used the same ball and blow dryer from the constant forward force experiment, but altered the direction of the blow dryer so that it was, instead, acting as a constant backward force. The ball slowed down as it went through the track set up, until it came to a complete stop. In the second experiment the car and fan from the constant forward force were used once more, with the difference being that the fan was placed so it was instead factored in as a constant backwards force. The car, as hypothesized, slowed down until it came to a complete stop.
From the conclusions of these two experiments we can conclude that a constant backward force will affect the velocity of an object by causing it to slow down and eventually stop. The object will not, however, be forced by the backward force to change directions, as that would mean the force moving into place as a forward force.
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