*19-4. The 40-kg disk is rotating at w = 100 rad/s. When the force P is applied to the brake as indicated by the graph. If the coefficient of kinetic friction at B is µ = 0.3, determine the time t needed to stay the disk from rotating. Neglect the thickness of the brake. P (N) 500 t (s) 300 mm 300 mm в 200 mm 150 mm 2.
*19-4. The 40-kg disk is rotating at w = 100 rad/s. When the force P is applied to the brake as indicated by the graph. If the coefficient of kinetic friction at B is µ = 0.3, determine the time t needed to stay the disk from rotating. Neglect the thickness of the brake. P (N) 500 t (s) 300 mm 300 mm в 200 mm 150 mm 2.
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Transcribed Image Text:*19-4. The 40-kg disk is rotating at w = 100 rad/s. When
the force P is applied to the brake as indicated by the graph.
If the coefficient of kinetic friction at B is µ = 0.3,
determine the time t needed to stay the disk from rotating.
Neglect the thickness of the brake.
P (N)
500
t (s)
300 mm
300 mm
в
200 mm
150 mm
2.
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