Physics 3.3 Net Force

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8 Terms

1
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What is net force? (Fnet)

The overall unbalanced force on an object. The leftovers.

2
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Can an object be in equilibrium if only one force acts on it?

no – there must be at least one other force present to cancel it out

3
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What is Newton’s first law?

If the net force on an object is zero, the object is in equilibrium and will maintain a constant velocity.

<p>If the net force on an object is zero, the object is in equilibrium and will maintain a constant velocity.</p>
4
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How do you find the horizontal net force?

Adding all rightward forces and subtracting all the leftward forces

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How do you find the vertical net force?

Adding all upward forces and subtracting all downward forces.

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How do you find the combined effect?

Use the pythagorean theorem. a2 + b2 = c2

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Can objects in constant velocity have a net force?

No. 0 net = constant velocity.

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Can an object be in equilibrium if only one force acts on it?

No because every action needs an equal opposite reaction.