A sprinter is running along the circumference of a big sports stadium with constant speed. Which of the following do you think is changing in this case?

(a) magnitude of acceleration being produced
(b) distance covered by the sprinter per second
(c) direction in which the sprinter is running
(d) centripetal force acting on the sprinter

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Solution

The sprinter is having a uniform circular motion in which the direction of motion continuously changes. So, the answer is
(c) direction in which sprinter is running

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The sprinter is having a uniform circular motion in which the direction of motion continuously changes. So, the answer is (c) direction in which sprinter is running

The sprinter is having a uniform circular motion in which the direction of motion continuously changes. So, the answer is
(c) direction in which sprinter is running