Name _
Section Number _
ENSC 2123
Exam 2
Spring 2007
1.
(25 points) A particle moves in the horizontal, frictionless slot shown below (horizontal slot means ignore gravity). The angle is increasing at a constant rate of 0.70 radians per second.

Name _
Section No. _ Oklahoma State University Engineering Science 2123 Elementary Dynamics Spring 2006 Final Exam 1. (10 points) A pitcher in a softball game releases the ball from a height of 2 ft, and at an initial angle of 15 degrees. The ball

ENSC 2123
Elementary Dynamics
Oklahoma State University
Fall 2011
Instructor:
Dr. Ronald D. Delahoussaye, EN 218, 744-5900, dela@okstate.edu
Dr. David A. Rubenstein, EN 218, 744-5900, david.rubenstein@okstate.edu
Office Hours:
Dr. Delahoussaye - Open Door

Name / DS %
4. (25) Determine the greatest acceleration with which the lOOO-kg forklift can raise the 750-kg
crate, without causing the wheels at B to leave the ground. The centers of mass for the
forklift and the crate are located at 61 and 62, respec

Dynamics
Type of Problem Based on Known
Variables
s
v
a
t
s
v
CASE I
a
Given
Displacement as function of Time
Find
v-t and a-t relationship
Two successive differentiations
ds
v(t )
dt
dv ds 2
a (t )
2
dt dt
t
Example
The position of a particle on a

Fall2011ENSC2123TAScheduleEN209
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WeekOnly) Wednesday
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Solving Simultaneous Equations with the TI-89
Logan West
We often have the need to solve simultaneous equations in our coursework, we can work
with matrices or solve them by hand, but when you get to the point where the equations
are non-linear, involve s

Name and Discussion Section Number _
ENSC 2123
Exam 2
Fall 2010
Question 1 (25 Points):
The 3kg collar slides along the smooth vertical spiral rod.
Determine the tangential force that must be propelling the collar and the normal force between
radians:
3.

Name _
ENSC 2123
Exam 1
Fall 2007
1.
(25 points) The water in the river shown below is flowing to the right at a speed of 10 feet per second. The man in the boat wishes to cross the river by traveling at an absolute speed of 25 feet per second,

Name _
ENSC 2123
Exam 1
Spring 2007
1.
(25 points) A ball having a mass of 4 kg and negligible size moves within a smooth (frictionless) vertical circular slot. If the ball is released from rest when = 10 degrees, determine the force of the slot

Name _
ENSC 2123
Exam 2
Fall 2007
1.
(25 points) A circus acrobat has a weight of 180 pounds, and is strapped to an inverted swing (a seat on a massless, rigid, 10 foot long pole that rotates freely, in a vertical plane, about point O) as shown

Name and Discussion Section Number _
ENSC 2123
Exam 3
Fall 2007
1.
(25 points) A ball bounces down the steps as shown in the figure below. On each bounce, the ball reaches the same height h' above the step as shown. If the step height h is 6 inc

Name and Discussion Section Number _
ENSC 2123
Exam 3
Spring 2007
1.
(25 points) In the figure shown below, Blocks A and B are attached by ropes to the double pulley. Block B is released from rest. When block B has moved 3 ft downward, it is tra

Name _
Section No. _ Engineering Science 2123 Spring 2007 Final Exam 1. (10 points) The motorcycle shown below is traveling at a speed of 30 meters per second when it exits the 30 degree ramp. Determine the distance (R), and the height (h) that the

Name _
Section Number _
ENSC 2123
Exam 2
Spring 2007
1.
(25 points) A particle moves in the horizontal, frictionless slot shown below (horizontal slot means ignore gravity). The angle is increasing at a constant rate of 0.70 radians per second.