EBK ENGINEERING MECHANICS
15th Edition
ISBN: 9780137569830
Author: HIBBELER
Publisher: VST
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Chapter 5, Problem 30P
To determine
The magnitude
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Solve this problem and show all of the work
Problem 2:
An athlete, starting from rest, pulls handle A to the left with a constant force of P = 150 [N].
Knowing that after the handle A has been pulled 0.5 [m], its velocity is 5 [m/s] to the left,
determine:
a) A position constraint equation using the given coordinate system.
b) An acceleration constraint equation.
c) The acceleration of A using kinematics equations.
d) The acceleration of B using your constraint equation.
e) How much weight (magnitude) the athlete is lifting in pounds using Newton's 2nd Law.
You must draw a FBD and KD of the circled assembly, assuming the pulleys are
massless. Note: 1 [lbf] = 4.448 [N].
ХА
Ув
Problem 1:
For each of the following images, draw a complete FBD and KD for the specified objects. Then
write the equations of motion using variables for all unknowns (e.g., mass, friction coefficient,
etc.), plugging in kinematic expressions and simplifying where appropriate. Assume motion in
all cases, so any friction would be kinetic.
M
(a) Blocks A & B (Be careful with
acceleration of B relative to accelerating
block A)
30°
(b) Block A being pulled up my motor M
(use rotated rectangular coordinate system)
20°
(c) Ball at C, top of swing (use path
coordinates)
(d) Parasailer/Person (use polar coordinates)
Chapter 5 Solutions
EBK ENGINEERING MECHANICS
Ch. 5 - Determine the horizontal and vertical components...Ch. 5 - Determine the horizontal and vertical components...Ch. 5 - The truss is supported by a pin at A and a roller...Ch. 5 - Prob. 4FPCh. 5 - The 25 kg bar has a center of mass at G. If it is...Ch. 5 - Prob. 6FPCh. 5 - Determine the reactions at the supports. Prob....Ch. 5 - Determine the horizontal and vertical components...Ch. 5 - Determine the reactions at the supports. Prob....Ch. 5 - A uniform glass rod having a length L is placed in...
Ch. 5 - If the intensity of the distributed load acting on...Ch. 5 - Prob. 23PCh. 5 - Prob. 24PCh. 5 - Prob. 25PCh. 5 - Prob. 27PCh. 5 - Prob. 30PCh. 5 - Prob. 35PCh. 5 - The cantilevered jib crane is used to support the...Ch. 5 - Prob. 38PCh. 5 - Prob. 39PCh. 5 - Determine the stiffness k of each spring so that...Ch. 5 - The boom supports the two vertical loads. Neglect...Ch. 5 - Prob. 43PCh. 5 - The 10-kg uniform rod is pinned at end A. If It is...Ch. 5 - Prob. 46PCh. 5 - Prob. 47PCh. 5 - Prob. 48PCh. 5 - Prob. 53PCh. 5 - The uniform rod has a length I and weight W. It is...Ch. 5 - Prob. 7FPCh. 5 - Prob. 8FPCh. 5 - Prob. 9FPCh. 5 - Determine the support reactions at the smooth...Ch. 5 - Prob. 11FPCh. 5 - Determine the components of reaction that the...Ch. 5 - The uniform loads has a mass of 600 kg and is...Ch. 5 - The 100-lb door has its center of gravity at G....Ch. 5 - Determine me tension in each cable and the...Ch. 5 - The bent rod is supported at A, B, and C by smooth...Ch. 5 - The bent rod is supported at A, B, and C by smooth...Ch. 5 - Prob. 77PCh. 5 - Prob. 78PCh. 5 - Prob. 80PCh. 5 - Prob. 82PCh. 5 - The bar AB is supported by two smooth collars. At...Ch. 5 - Prob. 84PCh. 5 - Prob. 85PCh. 5 - Prob. 86PCh. 5 - Both pulleys are fixed to the shaft and as the...Ch. 5 - Member AB is supported by a cable BC and at A by a...Ch. 5 - Prob. 2RPCh. 5 - Prob. 4RP
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