A 2.6-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 39°, the angular velocity of the arm about a horizontal axis through O is 52 deg/s clockwise and its angular acceleration is 220 deg/s² counterclockwise. In addition, the hydraulic element is being shortened at the constant rate of 520 mm/s. Determine the necessary minimum gripping force Pif the coefficient of static friction between the sphere and the gripping surfaces is 0.61. Compare Pwith the minimum gripping force P, required to hold the sphere in static equilibrium in the 39° position. 2.0 m Answers: P = 16.92 N P3 = 20.90 N

A 2.6-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 39°, the angular velocity of the arm about a horizontal axis through O is 52 deg/s clockwise and its angular acceleration is 220 deg/s² counterclockwise. In addition, the hydraulic element is being shortened at the constant rate of 520 mm/s. Determine the necessary minimum gripping force Pif the coefficient of static friction between the sphere and the gripping surfaces is 0.61. Compare Pwith the minimum gripping force P, required to hold the sphere in static equilibrium in the 39° position. 2.0 m Answers: P = 16.92 N P3 = 20.90 N

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

A 2.6-kg sphere S is being moved in a vertical plane by a robotic arm. When the angle 0 is 39°, the
angular velocity of the arm about a horizontal axis through O is 52 deg/s clockwise and its angular
acceleration is 220 deg/s² counterclockwise. In addition, the hydraulic element is being shortened at
the constant rate of 520 mm/s. Determine the necessary minimum gripping force Pif the coefficient of
static friction between the sphere and the gripping surfaces is 0.61. Compare P with the minimum
gripping force P; required to hold the sphere in static equilibrium in the 39° position.
2.0 m
Answers:
P =
i
16.92
N
P3 =
20.90
N

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