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How does air resistance affect the acceleration of a falling object?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
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?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
When its velocity is zero, what is its acceleration?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
What is air resistance?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
9. If a runner starts from rest and accelerates at .7 ft/sec2 for 2.0 minute, how far will the runner travel?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
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?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
What two conditions must be met before you can use the three equations we derived in this module?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
A driver is driving down the road and sees a deer in his headlights. The driver hits the brakes, which provide a acceleration of -4.0 m/sec2. If the car’s initial velocity was 9 m/sec, how far will the car travel before coming to a stop?
5,040 feet
motion must always occur in a straight line, and the acceleration of the object must be constant.
Its acceleration is always 9.8 m/sec2 downwards, even when its velocity is zero.
Air resistance should be greater. In a thicker air, it would be hard to move molecules out of the way.
Air resistance reduces the acceleration of objects that are falling.
Objects must shove air molecules out of the way. The molecules resist the shoving, which reduces the object’s acceleration.
10.125 meters
Since sir resistance is large, it would be hard for things to free fall. The terminal velocity would be lower.
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