# When a 50000 kg train car moving at 2 m s collides and connects to another identical car initially at rest?

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## When a 50000 kg train car moving at 2 m s collides and connects to another identical car initially at rest?

A 50,000 kg train car moving at 2 m/s collides and connects to another identical car initially at rest. Find the velocity of the two cars immediately after collision. Answer: The final velocity of the two cars after collision is 1 m/s.

## What is the speed of a 1.0 x10 3 kilogram car?

A 1.0 × 10³-kilogram car travels at a constant speed of 20 meters per second around a horizontal circular track.

## How does the momentum of the heavier car compare to that of the lighter car?

Compared to the lighter car, the momentum of the heavier car is 2x as much. 3. The recoil momentum of a gun that kicks is (more than) (less than) (the same as the momentum of the bullet it fires.

## What is Newton’s collision formula?

Newton’s famous experimental collision-formula given in text-books [1,2] relates these with the equation vr/ur = – e or (v1-v2)/(u1-u2) = – e , where e is said to be coefficient of restitution ( normally, 0 What is the formula for the collision equation?

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 velocity of a 500 kg car moving with 36km h?

Hence, the answer is 1250W. Was this answer helpful?

## How much force is needed to accelerate a 1000 kg car at a rate of 3 m 52?

hence, the force needed to accelerate the 1000kg car by 3m/s2 is 3000N .

## What is the acceleration of a car with a mass of 1 200 kg?

In this case, the mass of the car and the force exerted on it are provided as information. Therefore, the acceleration of the car is 0.5 m s−2 when its engine exerts a force of 600 N .

## What is the SI unit of momentum?

Momentum | |
---|---|

SI unit | kilogram meter per second (kg⋅m/s) |

Common symbols | p, p |

Other units | slug⋅ft/s |

Dimension | MLT^{−}^{1} |

## How to find momentum?

Step 1: List the mass and velocity of the object. Step 2: Convert any values into SI units (kg, m, s). Step 3: Multiply the mass and velocity of the object together to get the momentum of the object.

## Is a lighter car faster than a heavier car?

If you take two identical cars, but increase the mass of one car, they will have the same engine power, the same aerodynamic drag, and the same rolling resistance (see Note 1 below). The only thing that has changes is the mass, and since mass is not a factor in determining top speed, so top speed should stay the same.

## What is Newton’s 1st law formulas?

Newton’s First Law of Motion Formula In the first statement, p is the momentum. As p=mv, the second equation replaces p with mv. V is the object’s velocity, t is the time, and F is for force.

## Which law is collision?

Newton’s third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

## What is collision force called?

Consider the situation where two bodies collide with each other. During the collision, each body exerts a force on the other. This force is called an impulsive force, because it acts for a short period of time compared to the whole motion of the objects, and its value is usually large.

## What happens when 2 identical objects collide while moving at the same speed?

Both momentum and kinetic energy are conserved quantities in elastic collisions. Suppose two similar trolleys are traveling toward each other with equal speed. They collide, bouncing off each other with no loss in speed. This collision is perfectly elastic because no energy has been lost.

## When two identical masses collide with each other in elastic collision what will be the velocities after collision?

For a head-on collision with a stationary object of equal mass, the projectile will come to rest and the target will move off with equal velocity. Hence, the velocities are interchanged i.e. the speeds are interchanged which in turn interchanges the momentum.

## What happens when two objects that weigh the same collide at the same speed?

Two objects that have equal masses head toward each other at equal speeds and then stick together. The two objects come to rest after sticking together, conserving momentum but not kinetic energy after they collide. Some of the energy of motion gets converted to thermal energy, or heat.

## When two objects collide what is the same before and after the collision?

In collisions, it is assumed that the colliding objects interact for such a short time, that the impulse due to external forces is negligible. Thus the total momentum of the system just before the collision is the same as the total momentum just after the collision.