What is the speed of the block? and What is the tension in the string?
A 200g block on a 60.0cm -long string swings in a circle on a horizontal, frictionless table at 85.0rpm. Answers: (a) Speed is 5.34 m/s (b) Tension is 9.5 N Method: (a) speed = distance / time The distance is the circumference = 2πr = 2 x 3.14 x 0.6 m = 3.77 m The […]
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