A 300 g block on a 58.0 cm -long string swings in a circle on a...

Question

Question

A 300 g block on a 58.0 cm -long string swings in a circle on a horizontal, frictionless table at 85.0 rpm

What is speed of the block?

What is the tension in the string?

science physics

Answer 1

Answer #1

speed of block

v = r w = 0.58* 85* 2* 3.14 / 60

V = 5.16 m/s

=======

T = m v^2 / r

T = 0.3* 5.16^2 / 0.58

T = 13.772 N

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Answer 2

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