does positive acceleration necessarily mean that the object speeds up?

Asked by Jisha Mary Thomas | 8th Jul, 2013, 10:14: PM

Expert Answer:

When an acceleration value is positive, thisdoes not necessarily mean that the object is speeding up. A positive acceleration can indicateeither that the velocity of the object is increasing in a positive direction or decreasing in anegative direction. Alternatively, if the acceleration is negative, velocity can either beincreasing in a negative direction or decreasing in a positive direction.

Answered by  | 9th Jul, 2013, 03:06: PM

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