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pallavi pradeep bhardwaj Grade: 12
        

The length of seconds hand in a watch is 1 cm The change in velocity of its tip in 15 sec

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear pallavi


in 15 sec second hand rotates by an angel 90


initial velocity V1 = vi


final velocity   = -vj


 


 


change in velocity =-vj  -vi


                          = -v(i + j)


 


magnitude   =v√2


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Badiuddin

7 years ago
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