If an object is revolving in circular path of Radius 2m and during its motion, it traverses An arc of length 4m then the angle (in radians) Made at the center of the circle by this arc is:
Correct answer: A. 2 rad
- A. 2 rad
- B. 1 rad
- C. 2π rad
- D. None of the above
Explanation
When an object is revolving in a circular path with a radius of 2m and it travels along an arc of length 4m, we can calculate the angle made at the center of the circle. In this case, the angle is 2 radians. This means that if you were to draw lines from the center of the circle to the two ends of the arc, the angle between those lines would be 2 radians.
This question appeared on the KMU Centralized Admission Test 2021 paper, which you can sit online with every answer explained.
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About Angular Displacement
Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
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