Can Velocity Be Negative When Acceleration Is Positive?

  • Context: High School 
  • Thread starter Thread starter iMAGICIALoTV
  • Start date Start date
  • Tags Tags
    Kinematics
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
2 replies · 1K views
iMAGICIALoTV
Messages
11
Reaction score
0
Is it possible for velocity to be negative while the acceleration is positive? If so, then how is it possible?
 
Physics news on Phys.org
If you are rolling backwards in a car and put your foot on the gas pedal, you'll start accelerating forward instantly but until you come to a stop and start moving forward you'll have a negative velocity.
 
Sounds like a homework question...

Any object that has a negative velocity that is slowing down has a positive acceleration.