In a General Physics laboratory at Portland State, a block of mass m₁ is sliding along a near frictionless surface with initial velocity of v₁; and has a head-on elastic collision with a stationary block of mass m2. After the collision the blocks have velocities V₁f and v2f. Both masses are measured prior to the experiment and the initial speed of m₁ is also measured using a photo-gate instrument. (A) What equations from conservation are useful for determining V₁f and V2f. Simplify equations and solve for v2f in terms of v₁; and the masses of the two blocks m₁ and m₂. (B) Find v₁f and v2f if m₁=3.0 kg, m₁ has initial speed 4.0 m/s, and m₂=2.0 kg. (C) Show that the initial and final kinetic energies are equal as required in an elastic collision.

In a General Physics laboratory at Portland State, a block of mass m₁ is sliding along a near frictionless surface with initial velocity of v₁; and has a head-on elastic collision with a stationary block of mass m2. After the collision the blocks have velocities V₁f and v2f. Both masses are measured prior to the experiment and the initial speed of m₁ is also measured using a photo-gate instrument. (A) What equations from conservation are useful for determining V₁f and V2f. Simplify equations and solve for v2f in terms of v₁; and the masses of the two blocks m₁ and m₂. (B) Find v₁f and v2f if m₁=3.0 kg, m₁ has initial speed 4.0 m/s, and m₂=2.0 kg. (C) Show that the initial and final kinetic energies are equal as required in an elastic collision.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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In a General Physics laboratory at Portland State, a block of mass m₁ is sliding along a near
frictionless surface with initial velocity of V₁; and has a head-on elastic collision with a stationary
block of mass m2. After the collision the blocks have velocities v₁fand v2f. Both masses are
measured prior to the experiment and the initial speed of m₁ is also measured using a photo-gate
instrument.
(A) What equations from conservation are useful for determining v₁f and v2f. Simplify equations and
solve for V2f in terms of v₁; and the masses of the two blocks m₁ and m2 .
(B) Find V1f and
V2f
if m₁=3.0 kg, m₁ has initial speed 4.0 m/s, and m₂=2.0 kg.
(C) Show that the initial and final kinetic energies are equal as required in an elastic collision.

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