please I'm so hurry What is it answer this question ?A disk rotates with rotational kinetic energy is 70J and the angular momentum is 30 kg.m2/s .what is the value moment of inertia the disk?A) 6.4 kg.m2C) 40 kg.m2 B) 2.3 kg.m2 D) 0.43 kg.m2​

Answer:The value moment of inertia the disk:I = 6.4 kg·m²Explanation:Given:Tk = 70 JL = 30 kg·m² / s_____________I - ?Rotational kinetic energy:Tk = I·ω²/2Angular velocity:ω = √ (2·T / I)Angular moment of a rotating bodyL = I·ω = I·√ (2·T / I) = √ (2·T·I² / I ) = √ (2·T·I )Raising to the second degree:L² = 2·T·IThe value moment of inertia the disk:I = L² / (2·T)I = 30² / (2·70) ≈ 6.4 kg·m²А) 6.4 кг·м²