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Wanna14ever
29.07.2019 •
Physics
With a quarter-turn flick of the wrist, a student sets the frisbee rotating at 570 rpm . what is the magnitude of the torque, assumed constant, that the student applies?
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Ответ:
Momentum of the ball just after the release is 1.94 kg m/s
Explanation:
As we know that initially the spring and compressed against the ball
So here we will have
now we have
Here we know that
mass = 0.5 kg
k = 120 N/m
x = 0.25 m
now we can use formula of momentum here