A push or a pull, ever occurs alone; every force is part of ________________________________________ The forces involved in an interaction are equal in _______________and opposite in ___________________ An interaction requires a _______________________________________
A push or a pull, ever occurs alone; every force is part of ________________________________________
The forces involved in an interaction are equal in _______________and opposite in ___________________
An interaction requires a _______________________________________
State
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Does it matter which force we call the action and which force we call the reaction? _________________
Do the action and reaction forces always occur at the same time? ___________________________________
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If a force pair is applied internal to a system, explain why they will or will not accelerate the system.
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If the force pair is external to the system, explain why they will or will not accelerate the system.
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If two forces act on one object simultaneously with equal force in opposite directions, will the object accelerate? (explain)
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When you step off a curb, does the street rise up to meet you? _____________________________________
When you fire a cannon, the force on the cannon and the cannonball are equal. Why doesn’t the cannon recoil with the same speed as the cannonball?
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Explain how a rocket engine propels a rocket in the vacuum of space. _________________________________
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Any vector can be resolved into two ___________________________________________________________
When a surface is horizontal and only gravity acts on an object, the normal force exerted by the surface is equal to ___________________________.
On an inclined surface, when is the normal force equal to zero? ______________________________________
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