Question

Two cables are attached to the 300g sphere. The sphere rotates in a horizontal circle at a constant speed of 7.5m / s

1.0 m 0.50 m 0.50 m 1.0 m Figura 4




a) What is the tension in each of the cables?

b) how many revolutions per minute (rpm) does the system give?

c) calculate the (rpm) with which the lower cord loses all its tension

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Answer #1

Solve: Newtons second law in the r- and z-directions is (F),-11 cos 30° + T2 cos 30% my2 E(F),-Tsin 300-12 sin 30°-Fe = 0 N

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