A ring of diameter 1m is rotating about a central axis perpendicular to its diameter. It is rotating with a speed of 10rad/s. What force should be applied on it tangentially to stop it in exactly 3 rotations? Let the mass of the ring be 2kg.
A. 10 N
B. 25/3π N
C. 50/3π N
D. 12.5/3 N
Answer:B
A ring of diameter 1m is rotating about a central axis perpendicular to its diameter. It is rotating with a speed of 10rad/s. What force should be applied on it tangentially to stop it in exactly 3 rotations? Let the mass of the ring be 2kg.
A. 10 N B. 25/3π N C. 50/3π N D. 12.5/3 N