the term deceleration mean ?

Question

a- accelerating down a hill b- going faster and faster c- slowing down d- maintaining a constant velocity Please need help

Answer 1

Deceleration is the opposite of acceleration. When you accelerate, your velocity increases over time. When you decelerate, your velocity decreases over time.

A and B are both forms of acceleration.
D is not changing velocity at all.
C is deceleration.

Answer 2

de·cel·er·ate (d-sl-rt)
v. de·cel·er·at·ed, de·cel·er·at·ing, de·cel·er·ates
v.tr.
1. To decrease the velocity of.
2. To slow down the rate of advancement of: measures intended to decelerate the arms buildup.
v.intr.
To decrease in velocity.
[de- + (ac)celerate.]
de·celer·ation n.
de·celer·ator n.

ThesaurusLegend: Synonyms Related Words AntonymsNoun 1. deceleration - a decrease in speed; "the deceleration of the arms race"
retardation, slowing
fastness, swiftness, speed - a rate (usually rapid) at which something happens; "the project advanced with gratifying speed"
acceleration - an increase in speed; "modern science caused an acceleration of cultural change

Answer 3

Deceleration is still acceleration. It would be a negative value though. Looking at your term for accelerating down a hill, the eqn. is +g sin(theta). The opposite, decelerating, or going up the hill would be a = -g sin (theta).

Hope it helps.

Answer 4

It's slowing down--or accelerating opposite the direction of the velocity.

Answer 5

Hi
Accelleration is an increase in velocity. Picture your car going 35 mph - you hit the "accellerator" the engine speeds up and your car accellerates to - say 60 mph.

Decelleration is a decrease in velocity. Picture same car going 60 mph. You hit the brakes and the car "decellerates" - that is slows down.

Any help?

Answer 6

acceleration means literally to change in speed or velocity. acceleration can either be speeding up, slowing down, or turning in another direction

however, deceleration strictly means to slow down.

Answer 7

the prefix "de-" means the reverse of, so it's the reverse of acceleration (the reverse of speeding up). Deceleration is slowing down.

Answer 8

a meand to get more
\de means to get less(DEcrease)
it means the opposite of accelerart wich is to speed up so it is TO SLOW DOWN

Answer 9

If you don't have a book known as a 'dictionary' in your house or school, there are at least a ga-zillion of them on the internet. <...good God, these are the leaders of tomorrow??????....>

Answer 10

negative acceleration