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Card 6

Front

Why aren’t these forces necessarily equal to one another?

Back

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Card 7

Front

For a moving car, where does friction act?

Back

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Card 8

Front

What is the resultant force on an object?

Back

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Card 9

Front

What happens to a stationary object if the resultant force on the object is zero?

Back

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Card 10

Front

What would you observe if the object was in motion (still with a resultant force of zero)?

Back

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Card 11

Front

When a heavy box is pushed across the floor at constant velocity, what can be said about the resultant force on the box?

Back

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Card 12

Front

How can you find the resultant force on a jet during take-off?

Back

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Card 13

Front

How could the take-off speed be increased?

Back

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Card 14

Front

When the driver of a race car applies the brakes, how large is the braking force compared to the engine force?

Back

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Card 15

Front

How would you calculate the resultant force acting on the car?

Back

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