Kinetic energy of a bullet

    • [PDF File]PHYSICS 11 ASSIGNMENT 3C Momentum and Impulse

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      4) Find the momentum of a 50 g bullet whose kinetic energy is 250 J. 5) A 4.0 kg seagull flies at 15 m/s into the windshield of an airplane flying in the opposite direction at 180 m/s. If the impact lasts 1.0 ms, find the average force on the windshield. 6) A car with a momentum of 3.2x10 4 kg ·m/s is brought to a stop in 2.0 s. What is the ...

    • CK-12 Physics Concepts - Intermediate Answer Key Chapter 9 ...

      Find the kinetic energy of the bullet. b. What work is done on the bullet if it starts from rest? c. If the work is done over a distance of 0.75 m, what is the average force on the bullet? d. If the bullet comes to rest after penetrating 1.50 cm into a piece of metal,

    • [PDF File]General Physics I Exam 5 - Chs. 13,14,15 - Heat, Kinetic ...

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      21. (12) A 50-gram lead bullet moving at 450 m/s is brought to rest when shot into a block of wood. Assume that 85% of the bullet’s kinetic energy goes to heating the bullet. The specific heat of lead is 130 kJ/kg C. a) (6) What quantity of kinetic energy (in kJ) goes into heating the bullet?

    • [PDF File]KINETIC IMPACT PROJECTILES

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      Depending on the type of bullet and launcher, single or multiple projectiles may be fired at once. HOW THEY WORK KIPs work by transferring kinetic energy from a weapon into a person. KIPs are purportedly designed to inflict pain and incapacitate an individual without penetrating the body. In theory, the larger shape

    • [PDF File]Collisions - Boston University

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      However, the kinetic energy is not necessarily conserved. There are four possible cases. 4 A ballistic pendulum A ballistic pendulum is a device used to measure the speed of a bullet. A bullet of mass m = 50g is fired at a block of wood (mass M = 750 g) hanging from a string. The bullet embeds itself in the block, and causes the combined block

    • [PDF File]No Slide Title

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      • The kinetic energy is dissipated • Increased tissue damage with yaw or tumble – Increased profile – Increased rate of kinetic energy ... • Long path of bullet – Energy degradation occurs deep in tissues – Large amount of damage through cavitation – Entrance and exit wounds may be small .

    • [PDF File]PHYSICS 111 HOMEWORK SOLUTION #8

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      • a) Show that the kinetic energy of the particle is: K= p2 2m (Do this on paper. Your instructor may ask you to turn in this work.) • b) Express the magnitude of the particle’s momentum in terms of its kinetic energy and mass. a) By de nition, the momentum of a partcile moving with velocity ~vis : p~= m~v. Its magnitude is p= mv. Kinetic ...

    • [PDF File]7. Kinetic Energy and Work Kinetic Energy

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      So as the ball falls, its kinetic energy increases. It is the gravitational force that accelerates the ball, causing the speed to increase. The increase in speed also increases the kinetic energy. The process of a force changing the kinetic energy of an object is called work. Work: Work is the energy transferred to or from an

    • [PDF File]Kinetic Energy is associated with the state of motion

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      Kinetic Energy is associated with the state of motion 1 2 2 KEmv= Units of Joules: 1 J = kg·m 2/s • KE depends on speed (v) not • KE doesn’t depend on which way something is moving ... Bullet travelin gg() at 950 m/s (3100 ft/s). m= 4.2 g and v ~ 950 m/s (3100 ft/s) KE = 2000 J

    • [PDF File]Chapter 8

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      The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling at speed . Part A Which of the following best describes this collision? Hint 1. Types of collisions An inelastic collision is a collision in which kinetic energy is not conserved.

    • [PDF File]Chapter 8 Momentum and Impulse 1 Momentum and Impulse

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      energy of the bullet; c) the kinetic energy of the bullet and pendulum immediately after the bullet becomes embedded in the pendulum. Figure 4: Figure 8.19 from University Physics 15th edition. 4 Elastic Collisions In an elastic collision, the momentum and kinetic energy are both conserved. 4.1 Elastic Collisions in One Dimension m A v Ai + m B ...

    • [PDF File]PHYS-2010: General Physics I Course Lecture Notes Section XII

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      by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in temperature of the bullet? Solution: The mechanical energy transformed into internal energy of the bullet is Q = 1 2 (KEi) = 1 2 1 2 mv2 i! = 1 4 mv2 i ...

    • [PDF File]Gunshot wounds: A review of ballistics, bullets, weapons ...

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      A bullet commonly travels in a parabolic shaped trajectory whose vertex and dis-tance are determined by the energy of the bullet. As a result, bullets fired at a longer distance need to be fired at a positive angle of elevation (inclination angle) to the line of the target. The path followed by the bullet in space is commonly termed

    • Mathematical Model for Bullet Ricochet

      s = initial kinetic energy of the bullet. If EL is the loss of energy due to ricochet, EL = Ex - ER = E 1 - a 2 Cos2 i - 2 Sin2 i]. (12) Impulsive force during ricochet: The impact of a bullet on a target is in the form of an impulse, i.e. a large force acting for a very short time. The value of the average force acting on the bullet can be de-

    • [PDF File]The Bullet-Block Mystery - ComPADRE

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      and kinetic energy to the block and bullet.. What do the laws of conservation of momentum and energy predict will happen We know that when a bullet penetrates into the block some of its energy is transformed into the kinetic energy of the bullet and block that causes it to rise about half a meter.

    • [PDF File]A study of ignition by rifle bullets - US Forest Service

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      exceed 800°C. Bullet fragments collected from a water tank were larger for solid copper and steel core/jacketed bullets than for lead core bullets, which also facilitate ignition. Physical processes are reviewed with the conclusion that kinetic energy of bullets is transformed to thermal energy by plastic

    • [PDF File]Work, Energy and Power Review Package

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      Kinetic Energy: 1) How much kinetic energy does a 50.0 g bullet traveling at 365 m/s have? 2) If a 78 kg cheetah is running at a speed of 120 km/h, how much kinetic energy does it have? 3) A 3.91 N baseball has 775 J of kinetic energy. How fast is it moving?

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