Question

In an elevator moving vertically up with an acceleration g, the force exerted on the floor by a passenger of mass M is

• A. Mg
• B. $\frac{1}{2}Mg$
• C. Zero
• D. 2 Mg

Answer 1

Answer: (D)

2 Mg

Answer 2

$R = \mspace{6mu} m\mspace{6mu}(g + a) = m\mspace{6mu}(g + g) = 2mg$