Uniform Circular Motion: Daily Life Example
Uniform circular motion occurs when an object moves along a circular path at a constant speed. The velocity's magnitude (speed) stays the same, but its direction continuously changes.
Option Analysis for Uniform Circular Motion:
- Option 1: A bus accelerating on a straight road - This describes linear motion with changing velocity (acceleration). It is not circular.
- Option 2: A ceiling fan rotating at constant speed - The blades trace a circular path. If the rotation speed is constant, this exemplifies uniform circular motion.
- Option 3: A ball rolling down an inclined plane - This is linear motion along the slope, with speed changing due to gravity. It is not circular.
- Option 4: A person walking in a straight line - This is linear motion, not circular.
Correct Example Identification:
A ceiling fan rotating at a constant speed fulfills the criteria of moving in a circle with unchanging speed, making it the correct example of uniform circular motion.
Important Questions from Circular motion
A particle is moving in a circle with uniform speed. It has constant
Suppose a boy is enjoying a ride on a merry - go -round which is moving with a constant speed of 10 ms-1. It implies that the boy is -
The circumference of a planet is 36,000 km. If the planet makes no other movement and takes 20 hours for one complete rotation, what is the speed of a point on its equator?
In a chamber, a uniform magnetic field of 4.5 G (1G = 10-4 T) is maintained. An electron is shot into the field with a speed of 4.8 × 106 m/s normal to the field. Find the radius of the circular orbit? Also obtain the frequency of revolution of the electron in its circular orbit? (e = 1.6 × 10- 19 C, me = 9.1 × 10-31 kg) choose an approximate value
- In uniform circular motion, the speed of the body:
