# Physics

A 300 g block on a 54.0 cm -long string swings in a circle on a horizontal, frictionless table at 85.0 rpm .

What is the speed of the block?

What is the tension in the string?

1. 👍 0
2. 👎 0
3. 👁 240
= 85*2PI/60

tension= mass*w^2*r

1. 👍 0
2. 👎 0

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