Motion in a plane is called

But to describe an object's motion, we have to first be able to describe its position—where it is at any particular time. More precisely, we need to specify its position relative to a convenient reference frame. Earth is often used as a reference frame, and we often describe the position of an object as it relates to stationary objects in that reference frame. For example, a professor’s position could be described in terms of where she is in relation to the nearby white board (Figure 1). In other cases, we use reference frames that are not stationary but rather are in motion relative to Earth. To describe the position of a person in an airplane, for example, we use the airplane, not Earth, as the reference frame (Figure 2). If an object moves relative to a reference frame—for example, if a professor moves to the right relative to a whiteboard, or a passenger moves toward the rear of an airplane—then the object’s position changes. This change in position is known as displacement. The word displacement implies that an object has moved, or has been displaced. The professor’s initial position is x 0 = 1.5 m x_0=1.5\text Δ x = x f ​ − x 0 ​ = 3 . 5 m − 1 . 5 m = + 2 . 0 m delta, x, equals, x, start subscript, f, end subscript, −, x, start subscript, 0, end subscript, equals, 3, point, 5, start text, space, m, end text, −, 1, point, 5, start text, space, m, end text, equals, plus, 2, point, 0, start text, space, m, end text . In this coordinate system, motion to the right is pos...

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Kerala Plus One Physics Notes Chapter 4 Motion in a Plane Summary Introduction In this chapter, we will study, about vector, its ’ addition, substraction and multiplication We then discuss motion of an object in a plane. We shall also discuss uniform circular motion in detail. Scalars And Vectors a. Scalars: A quantity which has only magnitude and no direction is called a scalar quantity. Eg: length; volume, mass, time, work etc. b. Vectors: (i) The need for vectors: In one dimensional motion, there are only two possible directions. But in two or three dimensional motion, infinite number of directions are possible. Hence quantities like displacement, velocity, force etc. cannot be represented by magnitude alone: Therefore in order to describe such quantities, not only magnitude but direction also is essential. (ii) Vector: A physical quantity which has both magnitude and direction is called a vector quantity. Eg: Displacement, Velocity, Acceleration, Force, momentum. 1. Position and Displacement Vectors: Position vector: Consider the motion of an object in a plane. Let P be the position of object at time tw.r.t.origin given O. A vector representing the position of an object P with respect to an origin O is called position vector \(\overrightarrow\). Hence we get K Filed Under:

A projectile is when any object is thrown into space with only gravity acting on it. The fundamental force exerted on a projectile is gravity. This isn't to say that other forces don't affect it; it only means that their impact is minor in comparison to gravity. A trajectory is a path that a missile follows. A batted or thrown baseball is also an example of a projectile. What is Projectile Motion? When a particle is thrown obliquely near the earth's surface, it takes a curved, constant-acceleration path to the centre of the earth (we assume that the particle remains close to the surface of the earth). The path of such a particle is referred to as a projectile, and its motion is referred to as projectile motion. In a projectile motion, two separate rectilinear motions occur at the same time: • x-axis: Uniform • y-axis: Motion of a Projectile Gravitational forces cause projectiles and satellites to travel in curved courses. We can anticipate their course by considering motion in both horizontal and vertical directions. Vertical and horizontal movement The force of gravity controls the vertical motion of a projectile. This indicates that the ball is being acted upon by an imbalanced force, causing it to accelerate downwards. This acceleration is \[9.8 ms^ \] represents the beginning vertical speed. Horizontal Motion Definition In physics, the projectile motion is broken into two components: horizontal and vertical. In most cases of projectile motion, the vertical component is...