Please see the attached photo:a) What is the magnitude of his initial angular acceleration about point O if your pull Force (F) on his gi is negligible?b) What is the magnitude of his initial angular acceleration about point O if your pull Force (F) on his gi is horizontal with a magnitude of 300N and applied at height h=1.4m 3. (10 pts) [Additional Problems: 10.28, 10.52, 10.78] In a judo foot-sweep move, yousweep your opponent's left foot out from under him while pulling on his gi (uniform) towardthat side. As a result, your opponent rotates around his right foot and onto the mat. Thefigure below shows a simplified diagram of your opponent as you face him, with his leftfoot swept out. The rotational axis is through point O. The gravitational force Fg on himeffectively acts at his center of mass, which is a horizontal distance d = 28 cm from point O.His mass is 70 kg, and his rotational inertia about point O is 65kg m2 and (b)(A) What is the magnitude of his initial angular acceleration about point o if your pull Fon his gi is negligible?(B) What is the magnitude of his initial angular acceleration about point o if your pull Fon his gi is horizontal with a magnitude of 300 N and applied at height h 1.4 m?com1.40. 11:oo000000000X0

The horizontal distance from the center of mass, (d)The mass of man, (m)The rotational inertia, (I)

Answered: 3. (10 pts) [Additional Problems:…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section: Chapter Questions

Problem 52PQ

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Please see the attached photo:

a) What is the magnitude of his initial angular acceleration about point O if your pull Force (F) on his gi is negligible?

b) What is the magnitude of his initial angular acceleration about point O if your pull Force (F) on his gi is horizontal with a magnitude of 300N and applied at height h=1.4m

3. (10 pts) [Additional Problems: 10.28, 10.52, 10.78] In a judo foot-sweep move, you
sweep your opponent's left foot out from under him while pulling on his gi (uniform) toward
that side. As a result, your opponent rotates around his right foot and onto the mat. The
figure below shows a simplified diagram of your opponent as you face him, with his left
foot swept out. The rotational axis is through point O. The gravitational force Fg on him
effectively acts at his center of mass, which is a horizontal distance d = 28 cm from point O.
His mass is 70 kg, and his rotational inertia about point O is 65kg m2 and (b)
(A) What is the magnitude of his initial angular acceleration about point o if your pull F
on his gi is negligible?
(B) What is the magnitude of his initial angular acceleration about point o if your pull F
on his gi is horizontal with a magnitude of 300 N and applied at height h 1.4 m?
com
1.40. 11:
oo000000000
X
0

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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