Engineering Your Future
9th Edition
ISBN: 9780190279264
Author: William C. Oakes, Les L. Leone
Publisher: Oxford University Press, USA
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Chapter 1, Problem 1.5A
i.
To determine
The growth of industries with number of people leaving the farms of America. Also mention the innovation brought and how the population was feeded in those days.
ii.
To determine
Explain about an early farm machinery and its similarities and differences with today’s machinery.
iii.
To determine
The dangers and preventive measures during use of farm machinery.
iv.
To determine
The changes from 17th century in a piece of farm machine.
v.
To determine
The situation of agriculture in the late 20th century and new aspects have it undertaken.
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1) In each of the following scenarios, based on the plane of impact (shown with an (n, t)) and the
motion of mass 1, draw the direction of motion of mass 2 after the impact. Note that in all
scenarios, mass 2 is initially at rest. What can you say about the nature of the motion of mass 2
regardless of the scenario?
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m2
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8. In the following check to see if the set S is a vector subspace of the corresponding Rn. If
it is not, explain why not. If it is, then find a basis and the dimension.
X1
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(b) S
X2
=
X3
X4
x1 + x2 x3 = 0
2) Suppose that two unequal masses m₁ and m₂ are moving with initial velocities V₁ and V₂,
respectively. The masses hit each other and have a coefficient of restitution e. After the impact,
mass 1 and 2 head to their respective gaps at angles a and ẞ, respectively. Derive expressions
for each of the angles in terms of the initial velocities and the coefficient of restitution.
m1
m2
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