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

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

Tardigrade Admin · Accepted Answer

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

Q. 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 55kg. In between the floor when the lift is moving up with a constant speed of 10km/h, he again measures his weight, which is

55 kg

65kg

50 kg

45 kg

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

Q. 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 $55 k g$ . 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