Can you explain the answer of this question below:The displacement covered by a seconds’ hand of radius r in a clock after one revolution is:A:360 degreeB:zeroC:3rD:2rThe answer is b.

Question

Can you explain the answer of this question below:The displacement covered by a seconds&#8217; hand of radius r in a clock after one revolution is:A:360 degreeB:zeroC:3rD:2rThe answer is b.

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Option b is correct because displacement means change of position from initial position but second hand clock after revolving comes back to its initial position so there is no change in its position

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Answer is 'A' because the angle formed there would be 360 degree.. i.e the distance between beginning and ending of second hand is 360 degree

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Explanation:

When the seconds hand of radius r completes one revolution, it covers a distance equal to its circumference.

Circumference: The circumference of a circle is given by the formula 2πr, where r is the radius of the circle.

Therefore, the distance covered by the seconds hand in one revolution is:

Distance = Circumference of the circle = 2πr

However, the displacement of the seconds hand is zero because it returns to its original position after completing one revolution. Displacement is the shortest distance between the initial and final positions of an object.

Thus, the correct answer is option B: zero.

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Right answer is B......

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The correct answer is b . there it is asked displacement .for a full revolution it will be always 0

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In a circle displacement is always zero because in circle initial and final point is same that's why answer is zero.

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In the terms of displacement ' If a particle after a series of changes returns to its initial point again i.e,, ( its initial and final points coincide with each other ) then the particle is said to have zero displacement' .

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When you cover a distance with magnitude and direction it is displacement there is no direction to second hand in a clock so displacement is zero

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The answer is b because Let the initial point of second hand be iIt completes one whole revolutionTherefore, it again comes at point iTherefore it's initial and final position is same and displacement is distance between initial position and final positionTherefore it is zero
Displacement = initial point - final point = i - i = 0

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But the correct answer is a

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How can it possible

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Yes you are right correct answer is 'B. Because displacement means shortest distance between initial position to final position. And shortest distance is 0

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B, zero is the the correct answer because displacement means shortest path between initial position to final position

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The answer is B but then why are they telling that the correct answer is A

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B

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The displacement is always the difference between initial and final position.
so correct answer is B.

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B

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I think the correct answer is b but in the they are giving it a

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B because point on which the second hand move the point does not move anywhere

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B

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