## What are the most significant sources of error for the momentum conservation?

# What are the most significant sources of error for the momentum conservation?

## What are the most significant sources of error for the momentum conservation?

By far the largest source of error in the experiment is in the final velocity after the collision. This is because while the carts are in contact with each other, there are small vertical forces which increase the frictional force and cause losses of both momentum and kinetic energy.

### Is momentum conserved within experimental errors?

It is probable that this difference is due to errors in the experiment because this value is fairly small. Therefore, the lab proved the law of conservation of momentum to be very accurate, but not completely true. However, one must be careful of overrating the impact of such forces on total system momentum.

#### How do you calculate linear momentum error?

Now, we know that momentum p=mv. Let’s multiply the minimum and maximum values of mass and velocity to get min and max values for momentum. so you are sure that momentum will lie between these values. Since the average of these numbers is 10010 kgm/s we say that the error is 10710–10010=700 (or 10010–9310=700).

**Can law of conservation of linear momentum ever be violated?**

Conservation of momentum is violated only when the net external force is not zero. But another larger system can always be considered in which momentum is conserved by simply including the source of the external force.

**Why is momentum conserved?**

Impulses of the colliding bodies are nothing but changes in momentum of colliding bodies. Hence changes in momentum are always equal and opposite for colliding bodies. If the momentum of one body increases then the momentum of the other must decrease by the same magnitude. Therefore the momentum is always conserved.

## What do you mean by conservation of linear momentum?

Conservation of linear momentum, general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant.

### What are sources of error?

Common sources of error include instrumental, environmental, procedural, and human. All of these errors can be either random or systematic depending on how they affect the results. Instrumental error happens when the instruments being used are inaccurate, such as a balance that does not work (SF Fig. 1.4).

#### What is the relation between kinetic energy and momentum?

In a constant object, momentum increases directly with speed whereas kinetic energy increases the square of the velocity due to energy momentum relation.

**What will be the error in measurement of kinetic energy if the error in measuring momentum is 100%?**

So, error in the measurement of Kinetic energy will be 300%.

**What is the formula of conservation of linear momentum?**

Linear Momentum of a System of Particles. Linear momentum is a product of the mass (m) of an object and the velocity (v) of the object. The formula for linear momentum is p = mv. The total amount of momentum never changes, and this property is called conservation of momentum.

## What is the law of conservation of momentum formula?

Using law of conservation of momentum, m1u1 + m2u2 = m1v1 + m2v2.