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What two conditions must be met before you can use the three equations we derived in this module?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
1. What if the air were “THICKER” and the molecules and atoms in the air more difficult to move. Would you expect the air resistance in your experiments to be more, less, or the same as it would be if it were thinner?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
An athlete runs at a constant velocity of 3.0 m/sec. How far will the athlete travel in 25 minutes?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
A cannon shoots its cannonball straight up in the air with an initial velocity of 500 m/sec. What is the maximum height that the cannonball can reach?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
A BMW 535I can accelerate from 0.0 to 60.0 mph in 7.9 seconds. What is its acceleration?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
A ball is thrown up in the air with an initial velocity of 1.2 m/sec. If the ball is caught at exactly the same height from which it was thrown, what will its velocity be?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
A very picky physicist says that no object can really experience free fall when falling near the surface of the earth. Explain why the physicist is technically correct.
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
2. If the air were to be “thicker” would you expect the terminal velocity of the objects you are studying to be lower, higher, or the same as without fog?
27,000 mph2
motion must always occur in a straight line, and the acceleration of the object must be constant.
when the ball returns to the place it was thrown, it has opposite velocity. Thus, its velocity is -1.2 m/sec (or down)
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
4,500 meters
12,755.1 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
Since everything close to earth will experience air resistance, nothing is falling solely under the influence of gravity.
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