a stone is moving in a circular path of radius 30 cm, it completes it's 4 and 1/2 turn in 3 min 30 sec, then magnitude of its velocity is?
it's very important
please guys
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a stone is moving in a circular path of radius 30 cm, it completes it's 4 and 1/2 turn in 3 min 30 sec, then magnitude of its velocity is?
it's very important
please guys
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Explanation:
it would at the opposite of initial position
Answer:
Solution : `t = 2min 20 sec = 120 + 20 = 140 sec` <br> after each complete rotation, displacement becomes zero. <br> Number of rotation `= (140)/(40) = 3 + (1)/(2) ` <br> ` therefore ` displacement in `(1)/(2)` rotation = 2r <br> ( displacement for 3 rotation =0) <br> Distance in `3 + (1)/(2)` rotation = `3xx 2pi r + pi r = 7pi r`
Explanation:
look try to make 20 sec to 30sec
solve it u ll get it