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The question is asking about the direction of the acceleration of a block rotating counterclockwise in a circle.

### Step-by-step analysis:

1. **Situation**: The block is rotating counterclockwise around a point in a circular motion.
   
2. **Acceleration in Circular Motion**:
    - In uniform circular motion, the acceleration is **centripetal**, which means it always points towards the **center** of the circle.
    - Since the block is rotating counterclockwise, at the position shown in the diagram, the acceleration should point towards the center of the circle.
  
3. **Vector Identification**:
    - The center of the circular path would be towards the left of the block.
    - Based on the diagram, vector **C** points directly to the left, towards the center of the circle.

### Conclusion:
Since vector **C** points towards the center of the circle, the correct answer is:

**B: C**

Would you like more details or clarifications?

Here are 5 related questions:
1. What is the difference between centripetal and centrifugal forces?
2. How is the velocity direction related to the motion in a circular path?
3. How do we calculate centripetal acceleration?
4. What happens to acceleration if the speed of the object in circular motion increases?
5. What are the differences between uniform and non-uniform circular motion?

**Tip**: In circular motion, always remember that the direction of acceleration is towards the center, and velocity is tangent to the path.

ঘড়ির কাঁটার বিপরীত দিকে একটি বস্ত্র ঘূর্ণায়মান একটি ব্লকের চিত্রে দেখানো অবস্থানে থাকা অবস্থায় গতির বৃদ্ধি। চিত্রের কোন তীরচিহ্ন দিয়ে ব্লকের লম্বি ঘূর্ণ নির্দেশিত?

Learn how to determine the direction of centripetal acceleration in a rotating object using a step-by-step approach. This problem involves the concept of uniform circular motion and the centripetal acceleration formula, suitable for students in Grades 9-12.

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