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  • A body moves along a semi-circle of radius (r) 1 m from point A to B in 3 seconds then its speed is <img alt="" src="https://cdn.entrance360.com/media/uploads/2022/08/24/untitled-2022-08-

A body moves along a semi-circle of radius (r) 1 m from point A to B in 3 seconds then its speed is

Option: 1

\upsilon =\frac{\pi }{3}\; m/s\;


Option: 2

\; \; \upsilon =\frac{\pi }{6}\; m/s\;


Option: 3

\; \upsilon =\frac{2 }{3}\; m/s\;


Option: 4

\; \upsilon =\frac{2\pi }{3}\; m/s


Answers (1)

best_answer

As we learned

Speed -

Rate of change of distance with time.

Formula

v=\frac{distance }{time}

 
 

  Total distance  =\pi r=\pi *1=\pi

Time taken = 3 sec

\therefore speed(\upsilon )=\frac{\pi }{3}\; m/s

 

Posted by

Ritika Kankaria

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