A 3.0kg mass tied to a string is swirled round with a uniform
speed of 20.0mls. If the length of
the string is 40cm Find the
tension in the string

Given:

Mass (m) = 3.0 kg

Uniform speed (v) = 20 m/s

Length of string (r) = 40 cm = 0.4 m

To Find:

Tension in the string (T)

Explanation:

Tension (T) is the string will be equal to centripetal force ().

Substituting value of m, v & r in the equation:

Tension in the string (T) = 3 kN

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