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The magnitude of displacement and average velocity of the top of the seconds hand of a clock of dial R = 25cm during t = 10s are : ​a) ½ and 1/40 c) ¼ and 1/20 ​b) ¼ and 1/40 d) ½ and 1/30
The magnitude of displacement and average velocity of the top of the seconds hand of a clock of dial R = 25cm during t = 10s are :​a) ½ and 1/40        c) ¼ and 1/20​b) ¼ and 1/40        d) ½ and 1/30

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3 years ago

riya
40 Points
```							    ans b) ¼ and  1/40GIVEN : radius =  25 cm the angle between intial and final point of second  hand is 60 o { 1s = 6 o  then 10 s = 60 o]WKT  dispacement is straight line distance between initial and final pointhence the triangle  so formed has an angle of 60o . so it is a equilateral triangleso the displacement = radius= 25 cm = ¼ mvelocity = displacement / time taken = ¼/10 = 1/40 m/s
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3 years ago
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