Accelerated Motion Problem-easy but I NEED HELP on it

AI Thread Summary
The discussion clarifies that horizontal motion in projectile motion maintains a constant velocity, while vertical motion is influenced by gravitational acceleration. It emphasizes that any change in direction, such as in rotating or oscillating motion, constitutes acceleration, even at constant speed. The conversation also notes that constant speed can occur in the absence of retarding forces like air resistance, particularly in a vacuum or on a frictionless surface. Additionally, the assumption of a uniform gravitational field is crucial for analyzing such motion. Understanding these principles is essential for solving accelerated motion problems effectively.
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[SOLVED] Accelerated Motion Problem--easy but I NEED HELP on it!

Is NOT an example of accelerated motion?

e. Horizontal component of projectile motion
 
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What happens to the horz component of the velocity in projectile motion?
 
Yes, since it stays constant.
 
Well - one could look at each answer and think about the acceleration involved.

Going vertical near a massive body, e.g. Earth or moon, a mass will experience the force (acceleration) due to gravity.

Something that involves a change of direction (something rotating, swinging, oscillating) is accelerating, even if it maintains constant speed.

The last answer would seem to infer constant speed (and velocity) provided a retarding or dissipating force (e.g. air resistance or friction) is not involved. Such would be the case in a vacuum or on a frictionless surface.
 
Also, we have to assume uniform gravitational field.
 
Shooting star said:
Also, we have to assume uniform gravitational field.
i.e. that it doesn't change direction/orientation so as to affect motion perpendicular to the field.
 
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