Physics- Resultant Forces

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• Created by: Emily1
• Created on: 10-09-13 16:44
What happens to a moving object if the resultant force on it is zero?
It keeps moving
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What happens to a moving object if the resultant force on it is not zero?
If the resultant force on an object is not zero it speeds up in the direction of the resultant force.
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If we double the resultant force applied to an object, what happens to its acceleration?
If we double the resultant force applied to an object its acceleration doubles.
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What force is needed to give an acceleration of 2 m/s2 to a 4 kg box?
8 N
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4 N is applied to a 2 kg object. What is its acceleration?
Acceleration = 4 ÷ 2 = 2 m/s2.
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What force is needed to give an acceleration of 10 m/s2 to a 250 g box?
250 g = 0.25 kg, so force = 0.25 × 10 = 2.5 N.
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Other cards in this set

Card 2

Front

What happens to a moving object if the resultant force on it is not zero?

Back

If the resultant force on an object is not zero it speeds up in the direction of the resultant force.

Card 3

Front

If we double the resultant force applied to an object, what happens to its acceleration?

Card 4

Front

What force is needed to give an acceleration of 2 m/s2 to a 4 kg box?

Card 5

Front

4 N is applied to a 2 kg object. What is its acceleration?