Introduction:
The three equations of motion and motion in a straight line would have been covered. We're going to learn about planar motion now. When we talk about motion in a plane, we're talking about motion in two dimensions and motion in two dimensions examples, because a plane is made up of two dimensions. As a result, we'll consider two axes: the X-axis and the Y-axis. We need to understand motion in one dimension in order to derive equations of motion.
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Physical quantities such as work, temperature, and distance can be expressed entirely by their magnitude in everyday life. The relationship between these physical values, on the other hand, maybe explained by arithmetic principles. The direction is just as important as the amount for representing physical variables like acceleration, displacement, and force. Let's look into Plane Motion presently.
The term "velocity" refers to a physical vector quantity that has both a magnitude and a direction. Speed refers to the magnitude or scalar absolute value of velocity. The magnitude of the velocity vector is given by – according to the Pythagorean Theorem.
| v | = v = √ ( vx ²+ vy ² )
The rate at which an object's velocity changes with respect to time is known as acceleration. It can be presented numerically or in terms of components as –
ay= ddt(vy(t)) ………..(Eq.1)
ax= ddt(vx(t)) ………..(Eq.2)
List of topics according to NCERT and JEE Main/NEET syllabus:
Importance of motion in a plane class 11:
From this class 11 physics chapter 4 motion in a plane, you can only expect one question from the chapter. This chapter lays the groundwork for the next topic, rotation, which is crucial for JEE. As a result, we recommend that you do not skip this chapter. Circular motion will be discussed several times in Mechanics.
NCERT Notes Subject Wise Link:
NCERT Solutions Subject wise link:
NCERT Exemplar Solutions Subject wise link:
Motion in a plane refers to the movement along the x- and y-axes in a two-dimensional plane.
One-dimensional motion occurs when an object moves in a straight line regardless of its direction. Two-dimensional motion occurs when an item moves in x and y coordinates at a constant velocity.
Accelerated motion occurs when the velocity of a moving object increases steadily over time.
Oscillatory motion is defined as the movement of an object back and forth around its mean location.
When an object is thrown into the air and the only force acting on it is gravity, it is called projectile motion.
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