Question

A boy of $50\, kg$ is standing in a left moving down with acceleration $9.8\,m/s^{2}$ . The apparent weight of the boy is:

• A. $\frac{50}{9.8}N$
• B. $50\times 9.8\,N$
• C. $50\, N$
• D. zero

Answer 1

Answer: (D)

zero

Answer 2

Mass of the boy $m=50$ Acceleration of lift (downwards) $a=9.8\, m / s ^{2}$ The apparent weight of the boy when the lift is moving downwards $w=m(g-a)=50(9.8-9.8)=0$