a 0.55kg ball, attached to the end of a horizontal card is resolved in a circle

Question

a 0.55kg ball, attached to the end of a horizontal card is resolved in a circle of radius 1.3 m on a frictionless horizontal surface. if the end will break when the tension in it exceeds 75m, what is the maximum speed the ball can have? a 0.55kg ball, attached to the end of a horizontal card is resolved in a circle of radius 1.3 m on a frictionless horizontal surface. if the end will break when the tension in it exceeds 75m, what is the maximum speed the ball can have? a 0.55kg ball, attached to the end of a horizontal card is resolved in a circle of radius 1.3 m on a frictionless horizontal surface. if the end will break when the tension in it exceeds 75m, what is the maximum speed the ball can have?

Explanation / Answer

centripetal force F = mv^2/r

F = 75 = 0.55*v^2/1.3

v = (75*1.3/0.55)^0.5 = 13.31 m/sec.

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