A slender 5.4-kg rod can rotate in a vertical plane about a pivot at B. A spring of constant k = 326 N/m and of unstretched length 150 mm is attached to the rod as shown. Knowing that the rod is released from rest in the position shown ( pos(1)). The rod has rotated through 90°. The work done by spring is 600 mm 350 mm Select one: Oa. 17.25 Ob. 24.78 Oc. 8.35 Od. 22.73 Ое. 6.85 The work done by weight is Select one: Oa 9.53 Ob. 1257 Oc.4.95 Od. 7.43 Oe. 15.43 Polar moment of inertia about B is Select one: Oa. 0.55 Ob.0.26 Oc. 0.44 Od. 0.18 Oe. 0.34 angular velocity at position 2 Select one: Oa. 5.13 Ob.9.86 O. 15.97 Od. 13.01 Oe. 7.69

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A slender 5.4-kg rod can rotate in a vertical plane about a pivot at B. A spring of constant k = 326 N/m and of unstretched length 150 mm is attached to the rod as shown. Knowing that the rod is released from rest in the position shown ( pos(1)). The rod has rotated through 90°. The work
done by spring is
600 mm
D
B.
120 mm
350 mm
Select one:
Oa. 17.25
Ob. 24.78
Ос. 8.35
Od. 22.73
Ое. 6.85
The work done by weight is
Select one:
O a. 9.53
Ob. 12.57
Oc. 4.95
Od. 7.43
Ое. 15.43
Polar moment of inertia about B is
Select one:
O a. 0.55
Ob. 0.26
Oc. 0.44
Od. 0.18
Ое. О.34
angular velocity at position 2
Select one:
O a. 5.13
Ob. 9.86
Ос. 15.97
Od. 13.01
Oe. 7.69
Transcribed Image Text:A slender 5.4-kg rod can rotate in a vertical plane about a pivot at B. A spring of constant k = 326 N/m and of unstretched length 150 mm is attached to the rod as shown. Knowing that the rod is released from rest in the position shown ( pos(1)). The rod has rotated through 90°. The work done by spring is 600 mm D B. 120 mm 350 mm Select one: Oa. 17.25 Ob. 24.78 Ос. 8.35 Od. 22.73 Ое. 6.85 The work done by weight is Select one: O a. 9.53 Ob. 12.57 Oc. 4.95 Od. 7.43 Ое. 15.43 Polar moment of inertia about B is Select one: O a. 0.55 Ob. 0.26 Oc. 0.44 Od. 0.18 Ое. О.34 angular velocity at position 2 Select one: O a. 5.13 Ob. 9.86 Ос. 15.97 Od. 13.01 Oe. 7.69
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