A boy ties a stone to the end of a string which he then whirles above his head round a circular path of radius 15cm. if the ston
e makes 20 oscillations in 10 seconds calculate the angular and linear speeds of the stone.
1 answer:
Answer:
W = 12.568rads
V = 1.8852m/s
Explanation:
Data:
r = 15cm = 0.15m
t = 10s
Revolutions = 20
Frequency (F) = number revolutions/ time take complete it
F = 20 / 10 = 2Hz
Angular velocity (w) = 2 * 3.142 * F
Note: 3.142 = value of pi
W = 2*3.142*2 = 12.568 rads
Linear velocity (v) = w*r
V = 12.568*0.15 = 1.8852m/s
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hope its help po #carry onlearning
The answer is D) The velocity decreases, the acceleration increases, and the net force increases on edge
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