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For which case is there a non-zero net force?

A. A ball sitting motionless on a park bench.
B. A car moving at a constant speed in a straight line.
C. A race car slowing down to a safe speed around a corner.
D. A waitress holding a tray of food motionless over their head.

Sagot :

GinnyAnsweridn

Final answer:

Net force is non-zero for an air bubble moving upwards in a soda bottle and a cork floating on water.


Explanation:

Net force is non-zero when:

  1. Air bubble moving up inside a soda bottle at a speed 0.1 m/s.
  2. A cork floating on water.

In both these cases, the net force is not zero due to the upward force opposing gravity or buoyancy force. However, for a car moving with constant velocity or for objects at rest, the net force is zero.


Learn more about Newton's First Law of Motion here:

https://brainly.com/question/38603068


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