At what point in a projectile’s trajectory does it experience a minimum velocity? as soon as it is launched half way to its high
2 answers:
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Answer:
Explanation:
When an object goes on a circular movement, it has a centripetal acceleration that always points toward the center of the circle, it is the responsible of the change of direction in the movement of the object. and that centripetal acceleration is related with the speed in the next way:
, with v the speed, r the radius of the track that is half of the diameter (22.5 m)
<h3>Answer: </h3>
(a)
<h3>Explanation </h3>- Newtons First Law can be written as the formula
since acceleration is the changing of velocity as its formula is
Thus, a force must be acting on an accelerating/decelerating object
- It is not mass as the mass does not act on the object but rather the mass is acting on the surface of the ground.
- Changing velocity is already acceleration
- inertia is the term used to describe Newtons first law