Answer to Question #154775 in Physics for mahdi

Question #154775

a block of mass 20 kg hangs from a ceiling by a cord. calculate the tension in the cord

Expert's answer

Let's apply the Newton's Second Law of Motion:

"\\sum F_y=ma_y=0,""T-mg=0,""T=mg=20\\ kg\\cdot 9.8\\dfrac{m}{s^2}=196\\ N."

Answer:

"T=196\\ N."

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