A 3.9-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 27°, the angular velocity of the arm about a horizontal axis through O is 52 deg/s clockwise and its angular acceleration is 179 deg/s² counterclockwise. In addition, the hydraulic element is being shortened at the constant rate of 600 mm/s. Determine the necessary minimum gripping force P if the coefficient of static friction between the sphere and the gripping surfaces is 0.46. Compare P with the minimum gripping force P required to hold the sphere in static equilibrium in the 27° position. 2.0 m Answers: P= Ps= i Z Z N N

A 3.9-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 27°, the angular velocity of the arm about a horizontal axis through O is 52 deg/s clockwise and its angular acceleration is 179 deg/s² counterclockwise. In addition, the hydraulic element is being shortened at the constant rate of 600 mm/s. Determine the necessary minimum gripping force P if the coefficient of static friction between the sphere and the gripping surfaces is 0.46. Compare P with the minimum gripping force P required to hold the sphere in static equilibrium in the 27° position. 2.0 m Answers: P= Ps= i Z Z N N

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

A 3.9-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 27°, the angular velocity of the arm about a
horizontal axis through O is 52 deg/s clockwise and its angular acceleration is 179 deg/s² counterclockwise. In addition, the hydraulic
element is being shortened at the constant rate of 600 mm/s. Determine the necessary minimum gripping force P if the coefficient of
static friction between the sphere and the gripping surfaces is 0.46. Compare P with the minimum gripping force P required to hold
the sphere in static equilibrium in the 27° position.
2.0 m
Answers:
P=
Ps=
i
Z Z
N
N

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