Option (b) is correct. Speed is the ratio of the distance an object moves to the amount of time needed to travel the distance.
Further Explanation:
The speed of a body is defined as the rate of the distance covered by the body. It means that the speed is the measure of the amount of distance covered by a body in a particular interval of time.
The mathematical expression for the velocity of a body is given as.
[tex]speed = \dfrac{{distance}}{{time}}[/tex]
The above mathematical expression shows that the speed of a body is the ratio of the distance covered by the body to the amount of time taken by the body to cover the particular distance.
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Answer Details:
Grade: High School
Chapter: Speed and distance
Subject: Physics
Keywords: Speed, ratio, distance, displacement, rate of distance, covered by body, time taken, mathematical expression, an object.
