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        The length of second s hand clock is 1cm what is the change in velocity of tips in15 second
7 months ago

Khimraj
2161 Points
							First of all answer given in your attachment is wrong.Correct answer will be calculated asAngular velocity of tip of second’s hand w = 2π/60 rad/s = π/30 rad/svelocity of tip v = w*r = π/30 cm/sLet the initial position of second hand is at 12 and final is at 3.then intial velocity v1= (π/30)$\hat{i}$and final velocity v2 = (π/30)(-$\hat{j}$)change in velocity = |v1-v2| = π(2)1/2/30 cm/sHope itclears.
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7 months ago
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## COUPON CODE: SELF10

### Course Features

• 101 Video Lectures
• Revision Notes
• Previous Year Papers
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Test paper with Video Solution

### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions