As Figure 4 shows, a 5.5 g coin is placed 10 cm from the center of a rotating disk. The disk rotates at 45 revolutions per minute. (a) Calculate the tangential speed of the coin as it moves around the center of the disk. (b) Calculate the magnitude of the force to keep the coin moving in a circular path. (c) Determine the frictional force applied to the coin by the disk surface. (d) Calculate the minimum coefficient of static friction required to keep the coin from sliding off the disk. Coin 10 cm Disk
As Figure 4 shows, a 5.5 g coin is placed 10 cm from the center of a rotating disk. The disk rotates at 45 revolutions per minute. (a) Calculate the tangential speed of the coin as it moves around the center of the disk. (b) Calculate the magnitude of the force to keep the coin moving in a circular path. (c) Determine the frictional force applied to the coin by the disk surface. (d) Calculate the minimum coefficient of static friction required to keep the coin from sliding off the disk. Coin 10 cm Disk
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Transcribed Image Text:As Figure 4 shows, a 5.5 g coin is placed 10 cm from the center of a rotating disk. The disk
rotates at 45 revolutions per minute.
(a) Calculate the tangential speed of the coin as it moves around the center
of the disk.
(b) Calculate the magnitude of the force to keep the coin moving in a
circular path.
(c) Determine the frictional force applied to the coin by the disk surface.
(d) Calculate the minimum coefficient of static friction required to keep the
coin from sliding off the disk.
Coin
10 cm
Disk
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