A particle moves on the x axis. When its acceleration is positive and increasing what can be said about its speed and velocity?

Question

Javier Harris

Physics

22 February, 02:00

A particle moves on the x axis. When its acceleration is positive and increasing what can be said about its speed and velocity?

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Answers (1)

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Kolton Gay · Answer 1

Acceleration is the rate of change of velocity.

Velocity is the change in displacement with time.

As long as acceleration is positive, whether increasing or decreasing, velocity, as well as speed, increases.

Don't forget that speed is the magnitude of velocity. Neglecting direction, speed and velocity are the same physical quantities. So one cannot increase while the other decreases.