# Physics - HELP

A 0.40 kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.5 m on a frictionless horizontal surface. The cord will break when the tension in it exceeds 61 N.

What is the maximum speed the ball can have?

1. max tension= m*v^2/r
solve for v.

posted by bobpursley
2. 15.12

posted by ali
3. 2341234

posted by y
4. 61=0.40v^2/1.5
91.5=0.40v^2
228.75=v^2
15.12=v

posted by Anthony Gray

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