science
Grade-11
Easy
Question
If a body travels along the perimeter of a square, the total time taken by the body to cover the perimeter once, is 2 s. Find the velocity of the body.
- Unity
- Zero
- Infinity
- None of the above
Hint:
velocity = Displacement / Time
The correct answer is: Zero
- Since velocity = Displacement / Time
- And Displacement in closed curve is zero if starting point and final point are same.
- So here velocity= 0 / 2s = 0
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