Motion

|Δp| = 2mu sinθ = 2 * 5 * 10? ³ * 5√2 * (1/√2) = 5 * 10? ² kg m s? ¹

⇒ x = 5

An example of the periodic motion is Earth's revolution. In this, the motion repeats itself after regular intervals of time. In oscillatory motion, the object moves back and forth about a mean position like a vibrating spring or pendulum. It is a type of periodic motion. Although, oscillatory motions are periodic, however, not vice versa. Oscillatory motion typically follows sinusoidal patterns and involves a restoring force.

When without slipping a body rotates and translates simultaneously is called rolling motion, such as a wheel on a road. It is the combination of rotatory and translatory motion. The point of contact has zero velocity relative to the surface in pure rolling. It is a condition in which there is no slipping or sliding during rolling.

According to the Class 11 Physics Chapter 6 System of Particles and Rotational Motion, for a rigid body to be in complete equilibrium, two conditions should be met:

• Net external torque = 0 (rotational equilibrium)
• Net external force = 0 (translational equilibrium)

The condition for equilibrium in rotational motion ensures that the body is not rotating or accelerating linearly. It is important in engineering and static structures to maintain stability like buildings or bridges.

To master the Class 11 Physics Chapter 3 Motion In A Plane, the students need to focus on thoroughly understanding vectors, and practice problems involving circular motion and projectile, for clarity, students should draw diagrams. They should memorize the key formulas, solve NCERT examples and attempt past year questions. For building strong conceptual clarity, they need regular practice with component resolution and vector addition.

When an object moves in two dimensions, vectors help in representing quantities like velocity, acceleration, and displacement. They allow easy subtraction, addition, and resolution into components. It helps in simplifying the analysis of complex motions like circular motion, projectiles, and motion under combined forces.

When an object moves around a circular path at a constant speed, it is called the uniform circular motion. The velocity changes while the speed remains constant because its direction keeps on changing. The centripetal acceleration is responsible for this change, which is directed towards the center of the circle.