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POWER POINT PRESENTATION physics (1).pdf
- 1. POWER POINT PRESENTATION BY:- JASRAJ SINGH AND ADITYA SINGH
- 2. CIRCULAR MOTION • Circular Motion is a movement of an object along the circumference of a circle or rotation along a circular path.
- 3. TYPES OF CIRCULAR MOTION • Uniform Circular Motion • Non-Uniform Circular Motion
- 4. UNIFORM CIRCULAR MOTION • The motion of a body moving with constant speed along a circular path is called Uniform Circular Motion. • Here, the speed is constant but the velocity changes. • It is accelerated motion.
- 5. • To calculate time period covered in uniform circular motion is T=2*pie*r/v • If a particle is moving in a circle, it must have some acceleration acting towards the center which is making it move around the center. Since this acceleration is perpendicular to the velocity of particle at every instant , it is only changing the direction of velocity and not magnitude and that’s why the motion is uniform circular motion. We call this acceleration Centripetal Acceleration, and the force acting towards the center is called Centripetal Force.
- 6. • It’s direction is toward center and Magnitude is Mass*velocity sq/radius • If the centripetal force becomes 0 the the object will go tangentially outwards.
- 7. SOME PICTURES RELATED TO UNIFORM CIRCULAR MOTION
- 8. CENTRIFUGAL FORCE • Centrifugal force is . Think of a ball on the end of a string that is being twirled around, or the outward motion you feel when turning a curve in a car. In an inertial frame, there is no outward acceleration since the system is not rotating. FORMULA= F=mW^2r
- 9. PICTURES RELATED TO CENTRIFUGAL FORCE
- 10. NON-UNIFORM CIRCULAR MOTION • Non-uniform circular motion denotes a change in the speed of the particle moving along the circular path. Note especially the change in the velocity vector sizes, denoting change in the magnitude of velocity.
- 11. • In Non-Uniform circular motion, the size of the velocity vector(speed) changes, denoting change in the magnitude of velocity. • The change in speed has implications for radial (centripetal) acceleration. There are two possibilities:- 1. The radius of the circle is constant. 2. The radial force is constant. • In either case, the angular velocity in non-uniform circular motion is not constant.
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