Question

An astronaut in an orbiting space craft attaches a mass m to a string and whirls it around in uniform circular
motion. The radius of the circle is R, the speed of the mass is v, and the tension in the string is F. If the mass,
radius, and speed were all to double the tension required to maintain uniform circular motion would be
(A) F (B) 2F (C) 4F (D) 8F

Answer 1

Answer:

i think the tension in the string will also be doubled.

Explanation:

this is because when we draw the free body diagram the force of tension cancels with the mass and the acceleration due to gravity. So, if the mass is doubled, the tension force will also be doubled.

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