# How do you solve momentum questions?

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## 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.

## What is collision answer?

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 | MLT^{−}^{1} |

## 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.

## What is momentum Class 9 questions?

Momentum is the quantity that is used to describe the state of motion of an object with a non-zero mass. Hence, momentum is applicable to any moving object. If is the mass of an object and is the velocity with which this body travels, then momentum can be expressed as p → = m v → .

## What will be the momentum of a stone having mass of 10 kg when it is thrown with a velocity of 2m s?

Mass m = 10 kg Velocity v = 2 m/s Momentum p = ? We know that Momentum p = Mass m × Velocity v Therefore p = 10 kg × 2 m/s = 20 kg m/s Thus the momentum of the stone = 20 kg m/s.