Statement I: A body can have acceleration even if its velcity is zero at a given instant .
Statement II: A body is momentarily at rest when it reverses its direction of velocity.

Options

A. Statement I is true, Statement II is true, Statement II is a correct explanation for Statement I.
B. Statemnt I is true, Statement II is true, Statement II is true, Statement II is false.
C. Statement I is true, Statement II is false.
D. Statement I is false, Statement II is true.

Explanation

To analyze the statements provided in the question, we will break down each statement and provide a step-by-step explanation.

### Step-by-Step Solution:

1. **Understanding Statement I**:
- Statement I claims that a body can have acceleration even if its velocity is zero at a given instant.
- **Explanation**: Acceleration is defined as the rate of change of velocity. A body can be at rest (velocity = 0) and still experience acceleration. For example, if a car is at a stoplight and suddenly accelerates, its velocity is zero at that instant, but it is still experiencing acceleration as it begins to move.

2. **Understanding Statement II**:
- Statement II states that a body is momentarily at rest when it reverses its direction of velocity.
- **Explanation**: When an object changes direction, it must first come to a stop (momentarily at rest) before it can start moving in the opposite direction. For instance, if a ball is thrown upwards, it will eventually stop at its highest point (momentarily at rest) before it starts to fall back down.

3. **Combining Both Statements**:
- Both statements can be true simultaneously. The first statement indicates that an object can have acceleration while at rest, and the second statement describes a scenario where an object is momentarily at rest while reversing its direction.
- **Conclusion**: Both statements are correct, and Statement II provides an example of the situation described in Statement I.

4. **Final Answer**:
- Since both statements are correct, the correct option is (a) Both Statement I and Statement II are correct.