Uniform circular motion pdf

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Users are also granted the right to copy the text and modify it for their own use. Right-clicking on the PDF above displays additional options. 1996-2018 The Physics Classroom, All rights reserved. Which is better- AIIMS or NEET? A object goes from point X to Y and then come back from Y to X. What is the displacement and average velocity? Write down the difference between Scalars and Vectors?

Four Cyclist A,B,C ,D starts at the same point and at the same time and move in a straight line to reach destination . They all move with uniform velocities. What do you infer if ? What is the difference between Uniform Accelerated and Non Uniform accelerated motion? A body is said to be in uniform acceleration if it travels in a straight line and its velocity increases or decreases by equal amounts in equal intervals of time. A car moving in a straight line. Some time putting more pressure on the accelerator pedal is a perfect example of non uniform accelerated motion.

What happens to speed, velocity acceleration when an object moves in a circle with uniform speed? When an object is thrown upwards, what is true of velocity and acceleration at the highest point of motion of the object? It is the displacement covered by an object per unit of time. Physicscatalyst Our aim is to help students learn subjects like physics, maths and science for students in school , college and those preparing for competitive exams. All material given in this website is a property of physicscatalyst. It is also important to know the S. Velocity is more appropriate when direction is important.

For a speed-time graph, the area under the curve is the distance travelled. The gradient at any point on the curve equals the acceleration. Note, the acceleration is also the second derivative of a speed-time function. A car starts from rest and accelerates at 10 ms-1 for 3 secs. What is the maximum speed it attains? A car travelling at 25 ms-1 starts to decelerate at 5 ms-2.

How long will it take for the car to come to rest? A car travelling at 20 ms-1 decelerates at 5 ms-2. How far will the car travel before stopping? A car travelling at 30 ms-1 accelerates at 5 ms-2 for 8 secs. How far did the car travel during the period of acceleration? These problems concern a particle projected vertically upwards and falling ‘under gravity’. A stone is thrown vertically upwards at 15 ms-1.

A boy throws a stone vertically down a well at 12 ms-1. If he hears the stone hit the water 3 secs. It is not to be confused with radial velocity or rotational speed. In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path.

It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. Examples of circular motion include: an artificial satellite orbiting the Earth at a constant height, a fan’s blades rotating around a hub, a stone which is tied to a rope and is being swung in circles, a car turning through a curve in a race track, an electron moving perpendicular to a uniform magnetic field, and a gear turning inside a mechanism. Since the object’s velocity vector is constantly changing direction, the moving object is undergoing acceleration by a centripetal force in the direction of the center of rotation. Without this acceleration, the object would move in a straight line, according to Newton’s laws of motion. 0, the acceleration vector a becomes perpendicular to v, which means it points toward the center of the orbit in the circle on the left.

Rope is cut and ball continues in straight line with velocity at the time of cutting the rope, in accord with Newton’s law of inertia, because centripetal force is no longer there. In physics, uniform circular motion describes the motion of a body traversing a circular path at constant speed. Since the body describes circular motion, its distance from the axis of rotation remains constant at all times. In the case of rotation around a fixed axis of a rigid body that is not negligibly small compared to the radius of the path, each particle of the body describes a uniform circular motion with the same angular velocity, but with velocity and acceleration varying with the position with respect to the axis. In the case of uniform circular motion, α will be zero. The vector relationships are shown in Figure 1. The direction of ω is chosen using the right-hand rule.