Question
What does positive acceleration mean? Can a particle slow down if acceleration is positive?
Solution
When the velocity of particle is increasing with time, we have positive acceleration. Particle can speed up or slow down if acceleration is positive.
e.g. If downward direction is taken positive, then acceleration due to gravity will be positive.
When we throw the body in upward direction, acceleration slows down. And, acceleration speeds up when the body falls down.
e.g. If downward direction is taken positive, then acceleration due to gravity will be positive.
When we throw the body in upward direction, acceleration slows down. And, acceleration speeds up when the body falls down.
