Question

A body executing s imple harmonic motion is represented by equation x = 6.0 cos (9.4t +2.3). Then maximum speed of the body is equal to

• A. 9.4m/sec.
• B. 11.7 m/sec.
• C. 56.4 m/sec.
• D. 6.0 m/sec.

Answer 1

Answer: (C)