Newton's Second Law Example

The Second law of Newton states that the acceleration a body takes is proportional to the Force used in moving it, and inversely proportional to its mass, which is slowing it down.

Newton's Second Law lays the foundations of The Dynamics, which is the branch of Physics that studies the motion of objects and their response to forces. Descriptions of motion begin by defining quantities such as displacement, time, velocity, acceleration, mass, and force.

The equality defined by this law is indicated as follows:

The Force to be applied is equal to the mass of the object, multiplied by all the acceleration it takes.

Applied force

It is known that a Force is the agent capable of giving a body an acceleration, or a change in speed. When talking about Applied Force in Newton's Second Law, it can be both a Unique Force, like a System of Forces whose resultant has a value that gets to move the object.

Force is measured in Newton units, equivalent to Kilogram-meter every second squared.

Body Weight

The Weight of a Body is the Force required to move or lift it

. It is calculated with the same equality that occurs in Newton's Second Law, but the acceleration involved is known, and is that of Gravity. Weight is represented by the letter W:

Difference from Newton's First Law

The Newton's First Law, what is the Law of inertiaIt also speaks of Forces that act on bodies, but it is about bodies at rest. In the case of Second law of Newton, the bodies have a modification of its movement, since an acceleration is printed on them.

Applications of Newton's Second Law

Newton's Second Law is commonly used to know the acceleration that the body is going to acquire that will be set in motion with a known force, and whose mass is previously known.

However, this Law can be applied to know the weight of the body in question, since the acceleration of gravity that sustains it in the Earth's Gravitational Field is known.

You may even receive the task of calculate body mass, making use of the Weight and Gravity Acceleration, when only that Force and that acceleration intervene. In other cases, it will be more complicated, if the body is also moving by these other influences.

10 Examples of Newton's Second Law

1. When the weight of an object is measured on a scale.

2. When you kick a ball in motion, that movement or trajectory is modified.

3. When a crane is used to move a car, acceleration is added to it.

4. At the time of demolition of a building, an acceleration is impressed on the wrecking ball.

5. A snowball that increases in size as it rolls downhill, acquires more mass, and takes more acceleration, which joins the effect of gravity that attracts it to the lowest point.

6. In the Olympic sport of shot put, a force is applied to this dense metallic sphere to make it travel as far as possible.

7. In weightlifting or weightlifting, when the effort is made to bring the weights above the waist, instant acceleration is applied to them.

8. On a conveyor belt, an acceleration is applied to the displaced product so that it reaches its destination within the production area.

9. When a mug of beer is slid over the bar, it is because a force has been applied to make it reach the customer.

10. The pack animals are in charge of moving the weight of a cart, giving it an acceleration so that it is approaching its destination.

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