Which of the following is true regarding Newton's First Law of motion? An object will remain at rest or will remain in motion if it is already in motion unless a net external force is acted on it. i. ii. When a body is in equilibrium, it must be acted on by no forces, or by several forces such that their vector sum is zero. iii. Once a body has been set in motion, no net force is needed to keep it moving. i. and ii. only i. and iii. only i., ii., and iii.

College Physics
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Author:Paul Peter Urone, Roger Hinrichs
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Chapter4: Dynamics: Force And Newton's Laws Of Motion
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Problem 11CQ: (a) Give an example of different net external forces acting on the same system to produce different...
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Which of the following is true regarding Newton's First Law of motion?
i.
An object will remain at rest or will remain in motion if it is already in motion unless a
net external force is acted on it.
When a body is in equilibrium, it must be acted on by no forces, or by several forces
ii.
such that their vector sum is zero.
ii.
Once a body has been set in motion, no net force is needed to keep it moving.
i. and ii. only
i. and iii. only
i., ii., and iii.
Transcribed Image Text:Which of the following is true regarding Newton's First Law of motion? i. An object will remain at rest or will remain in motion if it is already in motion unless a net external force is acted on it. When a body is in equilibrium, it must be acted on by no forces, or by several forces ii. such that their vector sum is zero. ii. Once a body has been set in motion, no net force is needed to keep it moving. i. and ii. only i. and iii. only i., ii., and iii.
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