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How much force are you exerting when you lift a 20-pound dumbbell?

Anonymous

∙ 15y ago

Updated: 4/28/2022

Assuming the dumbbell is suspended at a constant height from the ground and not moving you are exerting 89 Newtons (N).

Force (N) = Mass (kg) x Acceleration due to gravity (9.8067 m/s2)

20lb = 9.072 kg

9.072 x 9.8067 = 89 N

Leigh

Wiki User

∙ 15y ago

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Q: How much force are you exerting when you lift a 20-pound dumbbell?

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Continue Learning about General Science

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Heavier (more massive) objects require more force to move than lighter objects. The formula is F = ma (force is equal to mass times acceleration). The same force applied to a more massive object will provide less acceleration (motion).

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Controlled Chaos. To oppose gravity is to create an anti gravity apparatus. Obviously, absence of gravity will lead to objects approaching the heavens(since no force to ground them to surface), thus, if gravity is viewed in form of magnetic fields, an 'unlike' pole will cause a 'like' pole to repel, thus creating an anti field force between the magnets. For gravity, should you find the answer i'd suggest getting a patent to a hover board

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The advantage of using an inclined plane to lift an object is that it reduces the?

Force required to move the object forward.

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Related Questions

How much force are you exerting when you lift a 50 pound dumbbell?

When you lift a 50 pound dumbbell, you are exerting a force equal to the weight of the dumbbell, which is 50 pounds or approximately 222.4 Newtons. This force is required to overcome the gravitational pull on the dumbbell and lift it against gravity.

What force present of you lift a pencil off the top of a desk?

The force required to lift a pencil off a desk is the gravitational force acting on the pencil. When you lift the pencil, you are exerting an upward force that overcomes the force of gravity pulling the pencil downward.

When you use a crowbar to lift a large rock you are working against the force called?

When using a crowbar to lift a large rock, you are working against the force of gravity. Gravity is pulling the rock downward towards the Earth, and you are exerting force in the opposite direction to lift it.

Is work done if you lift a brick?

Yes, work is done when you lift a brick against gravity because you are exerting a force over a distance in the direction of the force of gravity. Work is defined as force multiplied by distance in the direction of the force, so lifting the brick requires work to be done.

How does a single pulley make work easier?

A single pulley changes the direction of the force needed to lift an object, making it easier to lift by allowing you to pull downwards rather than upwards. It does not reduce the amount of work needed, but it helps in exerting the force in a more convenient direction.

How does a wind lift?

Wind can lift objects by exerting force on them through pressure differences. When wind flows around an object, it creates an area of low pressure on one side and high pressure on the other. This pressure difference can generate lift, similar to how an airplane wing functions.

Is work done on climbing stairs?

Yes, work is done when climbing stairs. Work is defined as force applied over a distance, so when you lift your body against gravity while climbing stairs, you are exerting force over a distance. The energy expended to lift your body is considered work.

Does a boy holding a suitcase in his hand exert force?

Yes, the boy holding a suitcase in his hand is exerting force. The force he applies is in opposition to the force of gravity acting on the suitcase, allowing him to lift and support its weight.

What two things you do that use force?

Pushing a heavy object across a room requires force to overcome friction and move the object. Lifting a weight off the ground involves exerting force to counteract gravity and lift the object.

What is a good inexpensive dumbbell brand?

There is not a better brand of dumbbell to use. Any brand that is in your budget is best. You will need to easily be able to lift them and they shouldn't hurt your hands.

If you were lifting a dumb bell would your muscle be contracting isometrically or isotonically?

Isotonically - The load your are lifting is equal to or less than the force generated by your muscle. Your muscle shortens when it contracts allowing you to lift the dumbbell.

What are the load effort force and the fulcrum in a biceps muscle?

In the biceps muscle, the load is the weight or resistance being lifted, such as a dumbbell. The effort force is generated by the muscle itself to lift the load. The fulcrum is the point in the body where the muscle attaches and pivots to create movement.

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