Question

A man weighing 60 kg is in a lift moving down with an acceleration of $1.8 \, ms^{-2}$. The force exerted by the floor on him is

• A. 588 N
• B. 480 N
• C. Zero
• D. 696 N

Answer 1

Answer: (B)

480 N

Answer 2

$R = m(g - a)= 60(9.8 - 1.8)$
$= 480\, N$