Acceleration of rolling object is zero at _ point of hill.
Correct answer: A. Highest
- A. Highest
- B. Lowest
- C. Middle
- D. None of these
Explanation
At the highest point of the hill, the gravitational force acting on the rolling object is perpendicular to the surface of the hill. This means that the force of gravity is not contributing to the acceleration of the object. Therefore, the acceleration is zero at the highest point of the hill.Acceleration of rolling object is zero at point of the hill where it moves along straight line (radius curvature of trajectory is infinity).
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