When can you treat a moving object as if it were a point-like particle?
A)Only if it really is a point-like particle.
B)You can always treat a moving object as if it were a point-like particle.
C)Only if the object is moving with constant acceleration.
D)Only if all parts of the object are moving in the same direction and at the same rate.
E)This question has no physical meaning.

Question

Quizplus · Accepted Answer

To treat a moving object as a point-like particle, all parts of the object must be moving in the same direction and at the same rate. This is often the case when the object is undergoing translational motion. If the object is rotating or deforming, it cannot be treated as a point-like particle. Therefore, option A is incorrect. Option B is incorrect because not all moving objects can be treated as point-like particles. Option C is incorrect because constant acceleration is not a requirement for treating an object as a point-like particle. Option E is incorrect because the question has physical meaning.

When Can You Treat a Moving Object as If It