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Gnom [1K]
2 years ago
6

What is the magnitude of the centripetal force that must be applied in order for a 2kg ball on a 2.0 m string to spin with unifo

rm circular motion at 5.0 m/s
Physics
2 answers:
NeTakaya2 years ago
6 0

The ball needs to accelerate with a magnitude <em>a</em> (pointed towards the center of the circle) of

<em>a</em> = (5.0 m/s)² / (2.0 m) = 12.5 m/s²

Then the required tension <em>F</em> in the string would need to be

<em>F</em> = (2 kg) (12.5 m/s²) = 25 N

bezimeni [28]2 years ago
5 0
Because centripetal force equals mv^2/r, we can plug in our known values to result in (2(5)^2)/2, which is equal to 25 n.
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