where v'a - vB is the relative velocity of the two objects after the collision and vB (a) Show that e = 1 for a perfectly elastic collision, and e = 0 for a completely inelastic collision. (b) A simple method for measuring the coefficient of restitution for an object colliding with a very hard surface like steel is to drop the object onto a heavy steel plate, as shown in Fig. 9-41. Determine a formula for e in terms of the original height h and the maximum height h'iod o VB VA is their relative velocity before it. | %3D reached oftor 1ligi

where v'a - vB is the relative velocity of the two objects after the collision and vB (a) Show that e = 1 for a perfectly elastic collision, and e = 0 for a completely inelastic collision. (b) A simple method for measuring the coefficient of restitution for an object colliding with a very hard surface like steel is to drop the object onto a heavy steel plate, as shown in Fig. 9-41. Determine a formula for e in terms of the original height h and the maximum height h'iod o VB VA is their relative velocity before it. | %3D reached oftor 1ligi

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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Question

9. (II) A measure of inelasticity in a head-on collision of two
objects is the coefficient of restitution, e, defined as
VA – v
e =
VB
VA
-
where v'a - vB is the relative velocity of the two objects after
the collision and vB - VA is their relative velocity before it.
(a) Show that e = 1 for a perfectly elastic collision, and
e = 0 for a completely inelastic collision. (b) A simple
method for measuring the coefficient of restitution for an
object colliding with a very hard surface like steel is to drop
the object onto a heavy steel plate, as shown in Fig. 9-41.
Determine a formula for e in
%3|
%3D
terms of the original height h
and the maximum height h'
reached after collision.
h'
IURE 9-41 Problem 49.
VA IVA
asurement of coefficient
estitution.

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