JAMB - Physics (2017 - No. 36)
What is the speed of a body vibrating at 50 cyclic per second
100 πrads\(_{−1}\)
200 πrads\(_{−1}\)
50 πrads\(_{−1}\)
400 πrads\(_{−1}\)
説明
1 cycle = 360° = 2π rad
∴ 50 cycle = 2 π rad × 50 = 100 πrad
∴ = angular speed = 50 cycles per seconds = 100 π rads\(_{−1}\)
∴ 50 cycle = 2 π rad × 50 = 100 πrad
∴ = angular speed = 50 cycles per seconds = 100 π rads\(_{−1}\)