The disk rolls without slipping on the horizontal surface, and at the instant represented, the center O has the velocity vo = 2.0 m/s and acceleration ao = 5.9 m/s² with directions shown in the figure. For this instant, the particle A has the indicated speed u = 2.1 m/s and time rate of change of speed u = 5.5 m/s?, both relative to the disk with directions shown in the figure. Determine the absolute velocity Va and acceleration a, of particle A. 0.49 m do 0.63 m

The disk rolls without slipping on the horizontal surface, and at the instant represented, the center O has the velocity vo = 2.0 m/s and acceleration ao = 5.9 m/s² with directions shown in the figure. For this instant, the particle A has the indicated speed u = 2.1 m/s and time rate of change of speed u = 5.5 m/s?, both relative to the disk with directions shown in the figure. Determine the absolute velocity Va and acceleration a, of particle A. 0.49 m do 0.63 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

The disk rolls without slipping on the horizontal surface, and at the instant represented, the center O has the velocity vo = 2.0 m/s and
acceleration ao = 5.9 m/s? with directions shown in the figure. For this instant, the particle A has the indicated speed u = 2.1 m/s and
time rate of change of speed iu = 5.5 m/s?, both relative to the disk with directions shown in the figure. Determine the absolute velocity
Va and acceleration a4 of particle A.
IA
0.49 m
0.63 m
Answers:
VA = (i
-8.39
i+
j) m/s
aA = ( 4.99
i+
-0.605
j) m/s?

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