Does the scale read 100 N 200 N or zero?

Asked By: Linnea Abdrakhmanov | Last Updated: 25th January, 2020
Category: science physics
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The answer is not zero as we cannot ignore the existence of forces on the spring balance. The 100 N forces on both ends put up a average force of 100 N ( 100+100/2 ). So it would mark 100 N on the scale. It is a very common mistake to think that the reading would be 200 N ( 100+100 ).

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Similarly, you may ask, does the scale read 100 N?

Does the scale read zero, 100 N, or 200 N -- or some other reading? The scale reads the tension in the string. The tension in the string is 100 N. This is the force the string must exert up on either of the 100-N weights at either end of the string.

Furthermore, what does N mean on a spring scale? n a balance that measure weight by the tension on a helical spring. Synonyms: spring balance Type of: balance. a scale for weighing; depends on pull of gravity.

Besides, what will the scale read?

When a person stands on a scale, the reading (the number of pounds or newtons) on the scale is actually the Normal Force that the scale exerts back towards the person to support the person's weight. This will change the contact force (the Normal Force) between the person and the scale.

What happens when one side of the tug of war rope has a large net force than the other?

Explanation: When both teams exert equal force then the net force on the rope will be zero. According to Newton's second law of motion, there will be no acceleration in the rope. But, if one side exerts greater force than other, net force on the rope will not be equal to zero.

39 Related Question Answers Found

Why does a rope climber pull downward?

The force that attracts earth to an object is equal and opposite the force that earth exerts on an object. As the climber exerts a force downward, the rope supplies a reaction force that is directed upward. When the reaction force is greater than the climber's weight, the climber accelerated upward.

What is the net force on a 1 N Apple when you hold it at rest above your head?

When you hold the apple above your head, the net force on the apple is zero. The apple is at rest. There are two forces acting on the apple. The support force (lets say the force of the hand acting on the apple) and the weight (the force of gravity which is the force the Earth exerts on the apple).

What does a spring scale measure?

They are used when the accuracy afforded by other types of scales can be sacrificed for simplicity, cheapness, and robustness. A spring balance measures the weight of an object by opposing the force of gravity acting with the force of an extended spring.

Does a baseball bat slow down when it hits a ball?

Does a baseball bat slow down when it hits a ball? Yes, but not much. The bat is hitting the ball, so the ball will speed up a lot. However,Newton's third law says the ball is also hitting the bat, so the bat must slow down.

Why can you exert greater force on the pedals of a bicycle if you pull on the handlebars?


When you pull upward on the handlebars, the handlebars push downward on you with an equal and opposite force. This force is transmitted through you to the pedals, in addition to the force you exert on the pedals with your legs.

What happens in tug of war if both the teams apply unequal force?

In a tug of war, each member of the two opposite teams push the ground in the forward direction. When a team pulls the rope, the rope pulls the team. This was Newton's third law. When both teams pull in opposite directions, they often don't exert equal forces; the stronger team exerts a larger force.

When you kick a football what action and reaction forces are involved?

However, when you kick a football with just one foot, that foot exerts an action force on the ball and, at the same time, the ball exerts a reaction force on your foot. In this case, the forces don't cancel out, so the ball travels through the air.

When a horse pulls on a cart the cart pulls the?

It's the ground! The horse pushes backward on the ground, so the ground pushes forward with an equal force. If the horse can push back against the ground with a force greater than the cart's resisting force, then the horse will accelerate. is greater than another force pair (friction/pull of cart).

Is inertia a force?

Inertia is a force which keeps stationary objects at rest and moving objects in motion at constant velocity. Inertia is a force which brings all objects to a rest position. All objects have inertia. A more massive object has more inertia than a less massive object.

How do I calculate normal force?


The weight of an object equals the mass of the object multiplied by the acceleration of gravity. Multiply the two values together. In order to find the normal force, you need to multiply the weight of the object by the cosine of the angle of incline.

How is net force calculated?

The magnitude of the net force acting on an object is equal to the mass of the object multiplied by the acceleration of the object as shown in the formula below. If the net force acting on an object is zero, then the object is not accelerating and is in a state that we call equilibrium.

What does a scale measure?

Scales measure how much something weighs—and they do it by measuring how much force exists between the object you're weighing and planet Earth. Although scales measure force, they give you measurements of mass in kilograms, grams, pounds, or whatever.

How do I calculate tension?

Tension Formula. The tension on an object is equal to the mass of the object x gravitational force plus/minus the mass x acceleration.

How can I calculate weight?

The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.

Do you weigh more in an elevator going up?


When the elevator is moving, we will weigh our normal weight. Since we are already moving at the same speed as the elevator (up or down), nothing is affecting us to change our weight. So for a short time, we are pushed into the floor more and our weight goes up. The same thing works when the elevator starts moving.

What force does a scale measure?

A scale measures the force that the scale is exerting on the object; typically this is a normal force, i.e. one that is normal, or perpendicular, to the surface or the scale. Now, very often, this normal force is equal to the weight, because the object is in equilibrium.

How do you solve an elevator problem in physics?

support force F = mass x acceleration + weight
For a mass m= kg, the elevator must support its weight = mg = Newtons to hold it up at rest. If the acceleration is a= m/s² then a net force= Newtons is required to accelerate the mass.