# Physics- Forces

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What is reaction time?
Time taken to see something, process it, and react.
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What is thinking distance?
The distance covered (in a car), where the person is processing the information. The car still moves in this time (around 0.6s on average)
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What is breaking distance?
The distance traveled between hitting the breaks and stopping.
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What is stopping distance?
Thinking d + breaking d
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Extension=
length - original length
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Force= weight =
mass x gravity
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Terminal velocity
= 0 resultant force; = 0 acceleration; = constant speed.
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## Other cards in this set

### Card 2

#### Front

The distance covered (in a car), where the person is processing the information. The car still moves in this time (around 0.6s on average)

#### Back

What is thinking distance?

### Card 3

#### Front

The distance traveled between hitting the breaks and stopping.

### Card 4

#### Front

Thinking d + breaking d

### Card 5

#### Front

length - original length