Answered: Q21-21 Rod AB has the angular motion…

Engineering

Mechanical Engineering

Q21-21 Rod AB has the angular motion shown. Determine the acceleration of collar C at this instant.

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

solve question 21, please, dynamics

Q17 -17 At a given instant, the gear racks have the velocities and
accelerations shown. Determine the angular acceleration of the wheel.
A. 8 rad/s2
2.5 rad/s?
С.
25 rad/s?
В.
D. 9 rad/s2
E. 32 rad/s?
Q18 -21 Rod AB has the angular motion shown. Determine the angular
velocity of rod BC at this instant.
А.
2 rad/s
В.
25.5 rad/s
С.
6.7 rad/s
D.
16.2 rad/s
E.
42.5 rad/s
Q19-21 Rod AB has the angular motion shown. Determine the velocity of
collar C at this instant.
A.
2 m/s B.
5.6 m/s
C.
8.9 m/s D.
16.2 m/s
Е.
42.5 m/s
Q20-21 Rod AB has the angular motion shown. Determine the angular
acceleration of rod BC at this instant.
А.
0.4 rad/s?
В.
18.4 m/s?
C.
32.4 rad/s?
D.
67.9 rad/s?
E.
52.4 rad/s?
Q21-21 Rod AB has the angular motion shown. Determine the acceleration
of collar C at this instant.
A. 0.4 m/s?
B. 18.4 m/s?
C. 32.4 m/s? D. 4.4 m/s?
E. 130.3 m/s?

014 -15 Pinion gear A rolls on the gear racks B and C. If racks B and C are
fixed, determine the acceleration of gear center A.
1.2 m/s2
C. 4.5 m/s
D. 18.7 m/s?
A. 15.4 m/s?
E. 34 m/s?
В.
= 4 rad's
Q15-15 Pinion gear A rolls on the gear racks B and C. If rack B is moving to
the right with a = 4 m/s and rack C is moving to the left with ac , determine
the acceleration ac.
43.2 m/s?
C. 25.5 m/s? D. 1.6 m/s? E. 38 m/s?
A. 12.4 m/s?
B.
Q16-17 At a given instant, the gear racks have the velocities and
Accelerations shown. Determine the angular velocity of the wheel.
A. 18 rad/s
2.5 rad/s
25 rad/s D
9. rad/s
В.
С.
E. 20 rad/s
nwono om
2mis
5 m's
0.25 m
2 m/s |

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