Asked by Derek
1.If a mass is 15 cm from the axis of rotation and makes 25 revolutions in 10 seconds, what is its speed in m/s?
2.If m = 0.1 kg and the values above still hold, what is the numerical values of the centripetal force?
2.If m = 0.1 kg and the values above still hold, what is the numerical values of the centripetal force?
Answers
Answered by
drwls
1. 25 rev/10 s = 2.5 rev/s
w = 2.5 *2*pi = 15.71 radians/s.
Multiply that by the radius for the speed.
V = 235.6 cm/s = 2.356 m/s
2. centripetal force = , m V^2/r
= m r w^2
w = 2.5 *2*pi = 15.71 radians/s.
Multiply that by the radius for the speed.
V = 235.6 cm/s = 2.356 m/s
2. centripetal force = , m V^2/r
= m r w^2
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