Question

A block is placed at 0.25 m from the centre of a
horizontal rotating platform. What is greatest
angular speed the platform may have without
causing the block slide if the coefficient of friction
is 0.2 ?
(A) 2.8 rad's (B) 7.84 rad/s
(C) 2 rad/s
(D) 18.74 rad's​

Answer 1

Answer:

(b) 7.84 rad/s .................

Answer 2

Answer:

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Explanation:

option B 7.84 rad/ s