A BB gun is fired at a cardboard box of mass m2 = 0.55 kg on a frictionless surface. The BB has a mass of m1 = 0.0125 kg and moves at a velocity of v1 = 79 m/s. It is observed that the box is moving at a velocity of v2 = 0.31 m/s after the BB passes through it. a)What is the BB's final velocity vf, in meters per second? b) If the BB doesn't exit the box, what will the velocity of the box v'2, be in meters per second?

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Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter9: Dynamics Of A System Of Particles

Section: Chapter Questions

Problem 9.60P

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A BB gun is fired at a cardboard box of mass m₂ = 0.55 kg on a frictionless surface. The BB has a mass of m₁ = 0.0125 kg and moves at a velocity of v₁ = 79 m/s. It is observed that the box is moving at a velocity of v₂ = 0.31 m/s after the BB passes through it.

a)What is the BB's final velocity v_f, in meters per second?

b) If the BB doesn't exit the box, what will the velocity of the box v'₂, be in meters per second?

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