No 7 6) A 2.8 m long arm OB rotates in a plane such that0 = 0.13t2. Collar A slides on OB such that itsdistance from point O is given by r = 2.8 -0.5t²where r is in metres. Determine the magnitudesof velocity and the acceleration of the collar atthe instant the arm has turned 28°.7) A particle moves along a plane circular path ofradius r equal to 1 ft. The position OA is given asa function of time as 0 = 6 sin(5t) rad, where t isin seconds. What are the rectangular compo-nents of velocity and acceleration for the particleat t = sec?OLEAS808Ba circular track of radius 40 ft. The position S along thare the angu

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Answered: No 7 | bartleby

Engineering

Mechanical Engineering

No 7

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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Question

No 7

6) A 2.8 m long arm OB rotates in a plane such that
0 = 0.13t2. Collar A slides on OB such that its
distance from point O is given by r = 2.8 -0.5t²
where r is in metres. Determine the magnitudes
of velocity and the acceleration of the collar at
the instant the arm has turned 28°.
7) A particle moves along a plane circular path of
radius r equal to 1 ft. The position OA is given as
a function of time as 0 = 6 sin(5t) rad, where t is
in seconds. What are the rectangular compo-
nents of velocity and acceleration for the particle
at t = sec?
O
LEAS
8
0
8
B
a circular track of radius 40 ft. The position S along th
are the angu

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