Acceleration of a rolling object is zero at _ point of the hill.
Correct answer: A. Highest
- A. Highest
- B. Lowest
- C. Middle
- D. None of these options is correct
Explanation
Firstly, at the highest point, all kinetic energy has been converted to gravitational potential energy so, there is a lack of kinetic energy to fuel the acceleration. Moreover, the object is at maximun velocity, at the highest point of the hill; that is where the corresponding acceleration is zero.
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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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