Mechanism And Machines
Quick practice
Question 1 of 5
A disc with a mass of 4 kg and a radius of gyration of 60 mm is mounted centrally on a horizontal axle of 80 mm length between the bearings. It spins about the axle at 800 rpm counter clockwise when viewed from the right side bearing. The reaction at the right hand bearing increases by 20% when the axle precesses about the vertical axis. Then the precession speed, when viewed from top, will be:
A
0.42 rad/sec in counter clockwise direction
B
1.559 rad/sec in counter clockwise direction
C
0.42 rad/sec in clockwise direction
D
1.559 rad/sec in clockwise direction
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