The statements that best describe the movement of the bowling ball moving down a flat bowling lane at a constant speed are:
C. Its movement shows Newton's first law of motion. F. Its movement remains the same unless a force acts upon it.
Explanation:
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C: According to Newton's first law (the law of inertia), an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Since the bowling ball is moving at a constant speed down the lane without any changes (acceleration), this law applies.
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F: This statement also aligns with Newton's first law, acknowledging that the bowling ball will continue moving at the same velocity in the absence of an external force (like friction, for example).
The other options are not applicable in this scenario:
- A: The bowling ball is not experiencing unbalanced forces since it's moving at a constant speed.
- B: Its movement does not change unless a force acts upon it.
- D: Newton's third law concerns action-reaction pairs, which isn't directly applicable here.
- E: Newton's second law states that acceleration is proportional to the net force acting on an object, which doesn't apply since the speed is constant.