F_{r} = F_{k l o t s} + F_{l i i v} = (ρ_{v a h e r} (a^{3} - \frac{π b^{2} a}{4}) + \frac{ρ_{l i i v} π b^{2} a}{4}) g = 9, 975 N

${F_r = F_{klots} + F_{liiv} = (\rho_{vaher}(a^3 - \frac{\pi b^2a}{4}) + \frac{\rho_{liiv}\pi b^2a}{4})g = {9,975}{N}}$

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