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Question: Answered & Verified by Expert
A body is moving with constant speed, in a circle of radius 10 m. The body completes one revolution in 4 s. At the end of 3rd second, the displacement of body (in m) from its starting point is:
PhysicsMathematics in PhysicsJEE MainJEE Main 2023 (31 Jan Shift 2)
Options:
  • A 30
  • B 15 π
  • C 5 π
  • D 102
Solution:
2308 Upvotes Verified Answer
The correct answer is: 102

Give: r=10 mT=4 s.

Displacement is defined to be the change in position of an object. As we can see from the above figure, displacement will be d=r2+r2

d=102 m

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