Assertion : A body can have acceleration even if its velocity is zero at a given instant of time.
Reason : A body is momentarily at rest when it reverses its direction of motion.

Options

A. Both Assertion and Reason are correct, Reason is the coreect expianation of Assertion
B. Bioth Assertion and Reason are Correct but Reason is not the correct expalnation of Assertion
C. Assetion is correct and Reason is incorrect
D. Assertion is incorrect and Reason is correct

Answer

To analyze the assertion and reason provided, let's break it down step by step.

### Step 1: Understanding the Assertion
The assertion states that "A body can have acceleration even if its velocity is zero at a given instant of time."

- **Explanation**: Acceleration is defined as the rate of change of velocity with respect to time. It is possible for an object to have a non-zero acceleration while its velocity is zero. A common example is when an object is thrown upwards. At the peak of its trajectory, the object's velocity is zero, but it is still under the influence of gravitational acceleration.

### Step 2: Understanding the Reason
The reason states that "A body is momentarily at rest when it reverses its direction of motion."

- **Explanation**: When an object reaches the highest point in its upward motion, it momentarily stops before it starts to fall back down. At this point, its velocity is indeed zero, but it is at rest only for an instant before it begins to accelerate downwards due to gravity. This momentary rest is when the direction of motion changes from upward to downward.

### Step 3: Conclusion
Both the assertion and the reason are correct. The assertion correctly identifies that an object can have acceleration while its velocity is zero, and the reason correctly explains that this occurs when the object is momentarily at rest while reversing its direction of motion.

### Final Answer
Thus, the correct answer to the question is:
**A: Both assertion and reason are correct, and the reason is the correct explanation of the assertion.**

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