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say mass(m) = 10 kg, radius(r) = 10 m, say friction coefficient = 0.5

force to break friction = 10 * 0.5 = 5 kgf = say 50 n

to find acceleration required to produce this force use f=m*a, shuffle to a = f / m

so a = 50 / 10 = 5 (m/s)/s, install in a = v^2 / r, so 5 = v^2 / 10,

so 10 * 5 = v^2, so sq. root 50 = v, so v = 7.07 metres / second

if friction coefficient and radius remain the same, altering the mass wont alter the velocity at breakaway point

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