Question

A force $\overset{\rightarrow}{F}$ = $6\overset{\rightarrow}{i}$ – $8\overset{\rightarrow}{j}$ + $10\overset{\rightarrow}{k}$ Newton produces an acceleration of 1 m/s² in a body. The mass of body would be –

• A. 200 kg
• B. 20 kg
• C. 10$\sqrt{2}$kg
• D. 6$\sqrt{2}$kg

Answer 1

Answer: (C)

10$\sqrt{2}$kg

Answer 2

m = $\frac{|\overset{\rightarrow}{F}|}{|\overset{\rightarrow}{a}|}$ = $\frac{10\sqrt{2}}{1}$ kg = $10\sqrt{2}$ kg