The rigid body shown is rotated about an axis perpendicular to the paper and through the point P. If M = 0.40 kg, a = 30 cm, and b = 50 cm, how much work is required to take the body from rest to an angular speed of 5.0 rad/s? Neglect the mass of the connecting rods and treat the masses as particles.
A) 2.9 J
B) 2.6 J
C) 3.1 J
D) 3.4 J
E) 1.6 J

Question

The rigid body shown is rotated about an axis perpendicular to the paper and through the point P. If M = 0.40 kg, a = 30 cm, and b = 50 cm, how much work is required to take the body from rest to an angular speed of 5.0 rad/s? Neglect the mass of the connecting rods and treat the masses as particles. 
A) 2.9 J 
B) 2.6 J 
C) 3.1 J 
D) 3.4 J 
E) 1.6 J

Quizplus · Accepted Answer

The Answer of The rigid body shown is rotated about an axis perpendicular to the paper and through the point P. If M = 0.40 kg, a = 30 cm, and b = 50 cm, how much work is required to take the body from rest to an angular speed of 5.0 rad/s? Neglect the mass of the connecting rods and treat the masses as particles. 
A) 2.9 J 
B) 2.6 J 
C) 3.1 J 
D) 3.4 J 
E) 1.6 J

The Rigid Body Shown Is Rotated About an Axis Perpendicular