Question

A lift is moving upward with increasing speed with the uniform acceleration $a$. The apparent weight will be

• A. Less than the actual weight
• B. More than the actual weight and have a fixed value
• C. More than the actual weight which increases as long as velocity increases
• D. Zero

Answer 1

Answer: (B)

More than the actual weight and have a fixed value

When lift will be moving upward, its equation will be written as

$N-mg=ma$

$N=mg+ma$

$N=m(g+a)$

Hence, apparent weight will be more than the actual weight and have a fixed value.