Introduction:
In the NCERT textbook "समतल में गति" for Class 11 Physics, the concept of motion in a plane is discussed in detail. This chapter covers topics related to vectors, projectile motion, circular motion, and laws of motion.

Key Concepts:
- Vectors: The chapter starts with a detailed explanation of vectors and their properties. It covers topics like addition and subtraction of vectors, resolution of vectors, and vector products.
- Projectile Motion: The chapter discusses the motion of a projectile in a plane, including the horizontal and vertical components of motion, range, time of flight, and maximum height attained.
- Circular Motion: Circular motion is explained with the help of examples like the motion of a car on a curved road or a satellite in orbit. Concepts like centripetal acceleration, centripetal force, and banking of roads are covered.
- Laws of Motion: The chapter also includes a brief discussion on Newton's laws of motion, including the first law (law of inertia), the second law (F=ma), and the third law (action-reaction pair).

Practical Applications:
- The concepts discussed in this chapter are not only theoretical but also have practical applications in various fields such as sports, engineering, and astronomy.
- Understanding motion in a plane is crucial for predicting the trajectory of objects in real-world scenarios, like a ball thrown at an angle or a satellite launched into space.

Conclusion:
Overall, the chapter "समतल में गति" in the Class 11 Physics textbook provides a comprehensive understanding of motion in a plane, laying a strong foundation for further studies in physics. It equips students with the knowledge and skills necessary to analyze and solve problems related to motion in two dimensions.

Examples