# How do you solve momentum questions?

## How do you solve a collision?

From the conservation of momentum, the formula during a collision is given by: m1v1 + m2v2 = m1v’1 + m2v’2. If the collision is perfectly inelastic, the final velocity of the system is determined using v’ = (m1v1 + m2v2)/m1 + m2.

## What is the formula for momentum collision?

Before the collision, one car had velocity v and the other zero, so the centre of mass of the system was also v/2 before the collision. The total momentum is the total mass times the velocity of the centre of mass, so the total momentum, before and after, is (2m)(v/2) = mv.

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

The formula for the Law of Conservation of Momentum is p=p’ or m1v1+m2v2=m1v1’+m2v2′. This equation shows us that the sum of the momentum of all the objects in the system is constant.

## How to calculate velocity?

Determine the object’s original velocity by dividing the time it took for the object to travel a given distance by the total distance. In the equation V = d/t, V is the velocity, d is the distance, and t is the time.

## What is momentum Class 9 formula?

Momentum is given as. p = m × v. Mass, m = p / v.

## What are 4 examples of collision?

collision, in physics, the sudden, forceful coming together in direct contact of two bodies, such as, for example, two billiard balls, a golf club and a ball, a hammer and a nail head, two railroad cars when being coupled together, or a falling object and a floor.

A collision happens when two bodies come in direct contact with each other. In this case, the two bodies exert forces on each other in a short period of time. The energy and momentum of bodies interacting undergo a change as a result of the collision.

## What is the formula for initial and final momentum?

The Impulse-Momentum Principle says I=mv−mu I = m v − m u which is final momentum – initial momentum so Impulse is the change in momentum. The principle of states that total momentum before impact is equal to total momentum after impact, m1u1+m2u2=m1v1+m2v2.

## Is momentum is a vector?

The momentum of a body is a vector quantity, for it is the product of mass, a scalar, by velocity, a vector.

## What is the SI unit for momentum?

Momentum
SI unit kilogram meter per second (kg⋅m/s)
Common symbols p, p
Other units slug⋅ft/s
Dimension MLT1

## What unit is momentum in?

In the International System of Units (SI), the unit of measurement of momentum is the kilogram metre per second (kg⋅m/s), which is equivalent to the newton-second.