Circular Motion
Circular Motion
CIRCULAR MOTION:
If an object moves in a circular path with uniform speed,then its motion is called uniform circular motion.
Some of the examples of uniform circular motion are as follows:
(i)A piece of stone tied to a thread and rotated in a circle with a uniform speed.
(ii) The motion of blades of an electric fan around the axle.
(iii) A satellite in a circular orbit around the earth.
(iv) A car is moving on a circular path with constant speed.
Example: The minute hand of a wall clock is 10 cm long. FInd its displacement and the distance covered from 10: 00 am to 10 : 30 am.
SOLUTION Given, length of the minute hand, l = 10 cm
Displacement from 10:00 am to 10:30 am is given by diammeter AOB = 2l = 20 cm
Total distance covered by the minute hand
The displacement of the minute hand is 20 cm and distance is 31.43 cm.
In Circular motion the : | |||
| Right Option : B | |||
| View Explanation | |||
The SI unit for angular velocity is | |||
| Right Option : C | |||
| View Explanation | |||
A body travels in a semi-circular path of radius 16 m. The time taken to travel this path if the speed of the body is 16 m | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
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7thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
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