Head-On Collision

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Confusion with non-head-on elastic collisions - Physics Forums
The discussion centers on understanding non-head-on elastic collisions involving two pucks of different masses. The user initially struggles with predicting the final velocities and directions after the collision, particularly when one puck is at rest and the other is in motion at an angle. They realize that momentum must be treated as a vector quantity, leading to confusion when applying ...

What is the true impact speed when two cars collide head-on at 50mph ...
In a head-on collision between two identical vehicles traveling at 50 mph, the impact speed is often reported as 100 mph, but this can be misleading. Each vehicle experiences a deceleration from 50 mph to 0 mph, resulting in a force similar to that of a single vehicle hitting a stationary wall at 50 mph. The kinetic energy involved in the collision is effectively the same as if one vehicle ...

Head on Collision with a car physics - Physics Forums
In a head-on collision between a dump truck and a subcompact car, both vehicles experience equal forces due to Newton's third law, but the truck sustains less damage because of its stronger construction. The discussion highlights that the truck's greater mass results in a smaller acceleration during the collision, leading to less force experienced by the truck driver compared to the car driver ...

Elastic Collision between billiard balls • Physics Forums
In a perfectly elastic collision between two billiard balls of equal mass, one traveling at 2 m/s and the other at 3 m/s in opposite directions, the final velocities can be determined using conservation of momentum and kinetic energy equations. The calculations yield two potential final velocities for one ball: -3 m/s or 2 m/s. The choice of which velocity corresponds to which ball depends on ...

Is it better to accelerate into a head on collision? - Physics Forums
If you were to be involved in a head on collision with an equally similar car, would it be best to slow down and brake, or accelerate into the car. This plays off the concept of two cars traveling 50 mph would have a combined force of 100 mph. This was dis-proven on mythbusters.

Two cars traveling toward each other question - Physics Forums
In a head-on collision between two identical cars traveling at 100 km/h each, the impact is equivalent to one car hitting a stationary brick wall at 100 km/h due to the conservation of momentum. The final velocity of both cars after the collision will be zero, similar to a car hitting a wall, as the energy dissipated is the same. However, if one car were to hit a wall at 200 km/h, the kinetic ...

Understanding Head-On Collisions: Elastic vs. Inelastic & Impact of ...
Head-on collision HELP! Homework Statement Consider a head-on collision between two objects. Object 1, which has mass m1, is initially in motion, and collides head-on with object 2, which has mass m2, and is initially at rest. Which of the following statements about the collision are true...

Car Crash Physics: Comparing Head-On Collisions & Relativity
The discussion explores the physics of car collisions, specifically comparing head-on collisions with a stationary wall and between two moving cars. It establishes that a head-on collision of two cars at 50 mph each results in similar deceleration and damage as a single car crashing into an immovable wall at 50 mph. The conversation also delves into the implications of relativity, noting that ...

Elastic collision between two balls with different masses
In the discussion about the elastic collision between two balls of different masses, participants clarify that while momentum is always conserved, the scenario described does not conserve kinetic energy, indicating a misunderstanding of the collision type. The initial calculations suggest two different mass ratios (2 and 8) based on momentum and energy conservation, respectively. It is ...

Inelastic Head-On Collision: Understanding Momentum and Kinetic Energy
An "elastic collision" is one in which kinetic energy is conserved. A "perfectly inelastic" collision is one in which the two colliding objects stick together and move off as one object. Kinetic energy is not conserved. But just an "inelastic" collision can have kinetic energy after the collision anywhere from 0 up the initial total kinetic energy.

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