If the velocity of an object is increasing with time, then acceleration is _.
Correct answer: B. Positive
- A. Negative
- B. Positive
- C. Zero
- D. None of these options are correct
Explanation
Option B is correct since when velocity increases acceleration will be positive as acceleration is the rate of change of velocity with time. Option A is incorrect since the acceleration will be negative when the velocity decreases. Option C is incorrect since acceleration is zero when the initial velocity equals average velocity. Option D is incorrect since Option B is the correct option.
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About Acceleration
Acceleration measures the rate at which velocity changes with time, including changes in speed, direction or both. Work includes average and instantaneous acceleration, the relation a = Δv/Δt, uniform acceleration equations, and interpreting velocity time and displacement time graphs, with acceleration carefully distinguished from velocity.
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