Question

A person is measuring his weight by standing on a weighing machine inside a lift. When the lift is at rest, the machine shows his weight to be $55 \,kg$. In between the floor when the lift is moving up with a constant speed of $10\, km/h$, he again measures his weight, which is

• A. 55 kg
• B. 65kg
• C. 50 kg
• D. 45 kg

Answer 1

Answer: (A)

55 kg

Answer 2

When the lift is moving up with a constant speed, there is no change in acceleration and hence, the weight remains same.