Question

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​

Answer 1

Explanation:

it would at the opposite of initial position

Answer 2

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