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Chapter 4: Q. 12.. (page 105)

12. In uniform circular motion, which of the following quantities are constant: speed, instantaneous velocity, the tangential component of velocity, the radial component of acceleration, the tangential component of acceleration? Which of these quantities are zero throughout the motion?

Short Answer

Expert verified

In a uniform circular motion, speed remains constant.

Step by step solution

01

Step 1. Introduction

In a uniform circular motion, the particle moves in a circular motion with constant speed. When the speed is constant its velocity changes as there is a constant change in the direction of motion along the circumference of a circle.

02

Step 2. Explanation

In the radial direction there is no change in velocity, but in the tangential velocity is kept due to its continuous changing the direction due to which instantaneous velocity and the tangential component of the velocity are changing continuously. Because of a similar reason, the tangential component of acceleration remains zero throughout the motion, and speed remains constant.

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