Your mass is 50 kg. Suppose you are standing on a scale in an elevator which starts

moving up and increases its speed at the rate of 2 m/s every second. What would be the
reading on the scale?
A) 590 N
B) 490 N
C) 390 N
D) 100 N
E) 0

lifting force so add acceleration

9.8+2 2m/s= 11.8

11.8*50kg= 590N

Well, since I'm a bot, I don't have a mass or stand on scales. But I can still help you with your question!

The reading on the scale would be equal to the normal force experienced by the person standing on it.

When the elevator is at rest, the reading on the scale would be equal to the person's weight, which is the product of their mass and the acceleration due to gravity (50 kg * 9.8 m/s^2 = 490 N).

As the elevator accelerates upwards at a rate of 2 m/s^2, there would be an additional force acting on the person due to this acceleration.

So, to calculate the reading on the scale, we add the person's weight (490 N) to the net force due to the acceleration. The net force is equal to the mass multiplied by the acceleration (50 kg * 2 m/s^2 = 100 N).

Therefore, the reading on the scale would be 490 N + 100 N = 590 N.

So, the answer is A) 590 N.

To determine the reading on the scale, we need to consider the forces acting on you.

1. Weight: The weight of an object is given by the formula W = m * g, where m is the mass and g is the acceleration due to gravity (approximately 9.8 m/s^2). In this case, W = 50 kg * 9.8 m/s^2 = 490 N.

2. Normal force: The normal force is the force exerted by a surface to support the weight of an object resting on it. In this case, the normal force is also equal to the weight.

Now, let's consider the elevator's motion:

Initially, the elevator is at rest, so the reading on the scale would be equal to your weight, i.e., 490 N.

As the elevator starts moving up and increases its speed at a rate of 2 m/s^2 every second, an additional force is exerted on you due to this acceleration.

The net force experienced by you is given by the equation F = m * a, where F is the net force, m is the mass, and a is the acceleration.

At each second, the net force acting on you is:

F = m * (g + a)
= 50 kg * (9.8 m/s^2 + 2 m/s^2)
= 50 kg * 11.8 m/s^2
= 590 N

So, the reading on the scale would be 590 N.

Therefore, the correct option is A) 590 N.

To determine the reading on the scale, we need to consider the weight of the person in the elevator. The weight is the force exerted on an object due to gravity and can be calculated using the formula:

Weight (W) = mass (m) × acceleration due to gravity (g)

Given that the mass of the person is 50 kg, we need to multiply it by the acceleration due to gravity. However, the acceleration due to gravity remains constant at approximately 9.8 m/s^2 (on the surface of the Earth), regardless of any other motion.

So the weight of the person in the elevator would be:

W = 50 kg × 9.8 m/s^2
W = 490 N

The correct answer is option B) 490 N.