Help i can't really understand

  • Thread starter dyenz
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In summary, if the velocity is constant, the acceleration of a certain car would be 0 (m/s^2) as the derivative of a constant is 0. The derivative is a measure of how a function changes as its input changes, and it is not necessary for this level of physics.
  • #1
dyenz
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what is the acceleration of a certain car if the velocity is constant?? is it zero?
 
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  • #2
The acceleration is the derivative of the velocity respect to time so if the velocity is constant, the acceleration would be 0 (m/s^2) (as the derivative of a constant is 0)
 
  • #3
what's the meaning of derivative?
 
  • #5
dyenz said:
what's the meaning of derivative?

Velocity is speed in a straight line. If the velocity is constant, there is no change in velocity, which is what acceleration is, so acceleration is 0 by definition. (Unless your teacher is very sneaky and is talking about the acceleration due to gravity.)

Derivatives are not necessary for this level of physics. Apparently you haven't had calculus, yet.
 
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