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Chapter 4 Describing Motion Around Us- Part 4

What is the displacement of the tip of a second hand of length 'r' of a clock in 30 seconds?

Type: MCQ • Marks: 1
What is the displacement of the tip of a second hand of length 'r' of a clock in 30 seconds?
Options
A. 2r
B. πr
C. Zero
D. r
Explanation
In 30 seconds, the second hand turns 180 degrees, so displacement spans the diameter (2r).
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Class 9th Science (MCQ)

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