# What is velocity of the two cars after the collision?

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## What is velocity of the two cars after the collision?

Once the momentum of the individual cars are known, the after-collision velocity is determined by simply dividing momentum by mass (v=p/m).

## What is the speed V of a car moving on a straight road changes?

The velocity of a car moving on a straight road Increases linearly according to equation, v = a + bx, where a & b are positive constants.

## What is the momentum of the system made up of the two cars after the collision?

The momentum of each car is changed, but the total momentum ptot of the two cars is the same before and after the collision if you assume friction is negligible. where F1 is the force on car 1 due to car 2, and Δt is the time the force acts, or the duration of the collision.

## Does velocity change with collision?

Since the collision only imparts force along the line of collision, the velocities that are tangent to the point of collision do not change. The velocities along the line of collision can then be used in the same equations as a one-dimensional collision.

## What happens to the velocity of a car during collision?

The only force that acts on the car is the sudden deceleration from v to 0 velocity in a brief period of time, due to the collision with another object. However, when viewing the total system, the collision in the situation with two cars releases twice as much energy as the collision with a wall.

## Can a car moving with speed V on a straight road be stopped?

A car moving with speed v on a straight road can be stopped with in distance d on applying brakes. id same car is moving with speed 3v and brakes provide half retardation, then car will stop after travelling distance.

## Is velocity the same if two scooters are moving at the same speed but in opposite directions?

So the two bodies moving with same speed but in different directions have different velocities. Was this answer helpful?

## What is the velocity of a moving vehicle?

The velocity of a moving car is given by v = X t + Y t where v is the velocity and t is the time. Then the SI units of X and Y respectively will be: m ; ms.

## 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.

## What is the formula for the common velocity after a collision?

What is the formula of 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.

## Why does velocity decrease after collision?

When a matter collides there is a transfer of momentum collectively and not the velocity as a single component. If a heavy mass strike a smaller mass then the collective momentum increases but collective velocity decreases.

## Is velocity different for both objects after collision?

The difference in the velocities of the two objects tells us how fast object 1 is moving relative to object 2, and is sometimes called the relative velocity. If kinetic energy and momentum are conserved, we can make some predictions about the relative velocity before and after the collision.

## What two things can cause an object to slow down?

Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction. Air resistance causes moving objects to slow down.

## How do you find the velocity of the second object after a collision?

If two particles are involved in an elastic collision, the velocity of the second particle after collision can be expressed as: v2f=2⋅m1(m2+m1)v1i+(m2−m1)(m2+m1)v2i.

## What is the formula for velocity after elastic collision?

Conservation of Momentum: The equation for conservation of momentum during an elastic collisions is: ( m 1 ) ( v 1 i ) + ( m 2 ) ( v 2 i ) = ( m 1 ) ( v f 1 ) + ( m 2 ) ( v 2 f ) , where the velocities before and after are described by their labeling where v 1 i , v 2 i represent the initial velocities and v 1 f , v 2 …

## What is velocity after elastic collision?

In a head-on elastic collision where the projectile is much more massive than the target, the velocity of the target particle after the collision will be about twice that of the projectile and the projectile velocity will be essentially unchanged.

## How do you find the velocity of a car?

Finding the final velocity is simple, with a few calculations and basic conceptual knowledge. 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.