"Kinetic Energy" Essays and Research Papers

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Kinetic Energy

of mass m initially at speed u collides head-on (without rotation) with a stationary puck of mass M. Find the velocities of both puck after the collision if: i) the collision is fully elastic ii) the collision if fully inelastic. i) momentum: kinetic energy: mu = mv+MV (+ve in direction of initial u) 1 /2 m u2 = 1/2 m v2 + 1/2 M V2 2 eqns in 2 unknowns: V = (u - v) m/M substitute in K eqn: u2 = v2 + (M/m) V2 = v2 + (M/m) (u - v)2 (m/M)2 = v2 + (u - v)2 (m/M) let ρ = (m/M) ⇒ v2 (1 + ρ) - 2ρ u v...

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Collisions Lab

the theories of conservation of momentum and kinetic energy in different types of 2D collisions. In order to do this, both an elastic and inelastic collision was conducted on an air table with pucks. A video was taken and analyzed to determine velocity, allowing for future finding of momentum and kinetic energy values. By finding these, it was possible to determine which kind of collision took place. With low values of change in momentum and kinetic energy that occurred in elastic collisions, it is...

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Lab Momentum

and final momentum are equal irrespective of their masses and initial velocities. The results show that momentum and kinetic energy of the system is conserved during an elastic collision while only momentum is conserved during inelastic collision. Kinetic energy is not conserved during an inelastic collision. This was found by dividing the final kinetic energy by the initial kinetic and getting a number that was close to one. Which is was fairly close in most cases. Introduction: The purpose of...

Free Kinetic energy, Elastic collision, Mass 918  Words | 4  Pages

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Physic- Collisions Lab Report

Abstract :The purpose of the experiment is to explore elastic and inelastic collisions in order to study the conservation of momentum and energy. The guided track, carts, photogates , 250 g weight and picket fences were the primary components used in the procedural part of the experiment. Each experiment involved the use of the photogates and picket fences to measure the initial and final velocities of both carts when they collide. The data was collected and translated to a graphical model for further...

Free Inelastic collision, Velocity, Elastic collision 1279  Words | 6  Pages

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Force and Kinetic Energy

Part B Now, suppose that Zak's younger cousin, Greta, sees him sliding and takes off her shoes so that she can slide as well (assume her socks have the same coefficient of kinetic friction as Zak's). Instead of getting a running start, she asks Zak to give her a push. So, Zak pushes her with a force of 125 \rm N over a distance of 1.00 \rm m. If her mass is 20.0 \rm kg, what distance d_2 does she slide after Zak's push ends? Remember that the frictional force acts on Greta during Zak's push and...

Free Potential energy, Introductory physics, Energy 814  Words | 4  Pages

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C 1D Collisions PhET Lab

-1.80 m/s 2.40 kg 4.80 kg +1.30 m/s 0.0 m/s -.433 m/s 2.50 kg 3.90 kg .850 m/s 11.5 kgm/s 2.68 m/s 5.10 kg 1.00 kg 0.900 m/s -4.60 m/s 4.60 m/s KE stands for Kinetic Energy and is measured in joules. Note that kinetic energy is not a vector quantity. Describe the effect of an elastic collision on the total kinetic energy of the two-object system. ____________________________________________________________________________________________ Perfectly Inelastic Collisions: To begin a collision:...

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Collisions

1) Introduction This Lab is about conservation of momentum. It is to investigate the difference of momentum before and after collisions. Using the photo gates record the velocity of each cart, comparing momentum and kinetic energy to find the law. The experimental apparatus are two red carts in approximately same weight and a gold cart in lower weight than the red ones, a stable air track (blow a constant stream of air out through numerous tiny holes) with low friction and two photo gates. 2)...

Free Introductory physics, Special relativity, Momentum 770  Words | 3  Pages

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engg1110

Two-body collision process: Linear momentum is conserved for a closed and isolated two-body system during collision because there is no net external force. Total kinetic energy of the system of two colliding bodies may or may not be conserved. If it is conserved, the collision is called an elastic collision. If the kinetic energy of the system is not conserved, the collision is called an inelastic collision. Completely inelastic collision: deformation is totally irreversible, so the two...

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Soda Bottle Rocket

rocket flight measured in meters and total amount of time aloft measured in seconds. The altitude will be measured by an altimeter. The acceleration will speed up and change direction. The force can be the gravity. The kinetic energy will be the mass and velocity. The potential energy on the launch pad. Newton's first law is about the state of motion of an object does not charge as long as the net force acting on the object is zero. His second law is about the acceleration of an object is equal to...

Free Classical mechanics, Force, Mass 861  Words | 4  Pages

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Angular Momentum and Its Properties

accelerate to the same angular velocity.3 To calculate the moment of inertia of an object one can imagine that the object is divided into many small volume elements, each of mass ?m. "Using the definition (which is taken from a formula in rotational energy) I=?ri2?mi and take the sum as ?m?0 (where I is the moment of inertia and ri is the perpendicular distance of the infinitely small mass' distance from the axis of rotation). In this limit the sum becomes an integral over the whole object: I = lim...

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