問題詳情
3. Cubical blocks of mass m and side l are piled up in a vertical column. The total gravitationalpotential energy of a columnof three blocks is
(A) 2.5 mg
(B) 3 mg
(C) 4.5 mg
(D) 6 mg
(E) 9 mg
3. Cubical blocks of mass m and side l are piled up in a vertical column. The total gravitationalpotential energy of a columnof three blocks is
(A) 2.5 mg