Laws Of Motion Question 142
Question: A coin is placed at the edge of a horizontal disc rotating about a vertical axis through its axis with a uniform angular speed 2 rad . The radius of the disc is 50 cm. Find the minimum coefficient of friction between disc and coin so that the coin does not slip .
Options:
A) 0.1
B) 0.2
C) 0.3
D) 0.4
Show Answer
Answer:
Correct Answer: B
Solution:
[b]