Category: Motion in One Dimension
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Motion in One Dimension – Important Points Regarding Acceleration
Important Points Regarding Acceleration (i) There is no definite relation between the direction of velocity vector and the direction of acceleration vector i.e. angle between velocity and acceleration may have any value. For Example (a) In case of projectile motion. (figure) The angle between acceleration and velocity is at O, at A and at…
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Motion in One Dimension – Acceleration
Acceleration It is defined as the rate of change of velocity and it is a vector quantity (i) Instantaneous acceleration : It is defined as the acceleration of a body at some particular instant. Instantaneous acceleration = = (ii) Average acceleration : = = The direction of average acceleration is the direction…
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Motion in One Dimension – Velocity
Velocity It is defined as rate of change of displacement and it is a vector quantity (i) Instantaneous Velocity : It is defined as the velocity at some particular instant. Instantaneous velocity is also called simply velocity. Instantaneous velocity = = (ii)Average Velocity : Average velocity = (iii)Uniform Velocity : A particle is said to…
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Motion in One Dimension – Speed
Speed Def : It is the rate of change of distance covered with respect to time covered with the particle and it is a scalar quantity (i)Instantaneous Speed: It is the speed of a particle at particular instant. When we say “speed”, it usually means instantaneous speed. Instantaneous speed = = (ii) Average…
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Motion in One Dimension – Distance and Displacement
Distance and Displacement (i) Distance is the length of the actual path travelled by a particle (ii) Displacement of a particle is defined as the change in position vector of the particle (iii) Let us suppose that a particle is moving from the point A to point B through C as shown (a) If we…
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Motion in One Dimension – Introduction
1.1 Kinematics The study of the motion of the objects without taking into account the cause of their motion is called kinematics. 1.2 Frame of reference : Three mutually perpendicular lines intersecting at a point is called frame of reference. Intersecting point is called the origin and three lines are named as X, Y &…