A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 121 N/m and of unstretched length 370 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0 = 0°), it has rotated through 90° to reach position (2) (e = 90°).400 mmK-0=0200 mmB300 mm200 mm0=90kinetic energy at position (1) (Joules)moment of inertia about the hinge (kg.m2)a. 0,8O b. 0.97c. 0.64d. 1.13O e. 0.32work due weight (N.m)work due to spring (N.m)a. -5,57b. -6.68C. -4.45d. -7.79e. -2.23angular velocity in position (2) (rad/s)О а. 5.71b. 6.85C. 4.57d. 7,99O e. 2.28O o o Cоо

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A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 121 N/m and of unstretched length 370 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0=0°), it has rotated through 90° to reach position (2) ( 0= 90°) 400 mm K 0=D0 200 mm B 300 mm 200 mm 0=90 kinetic energy at position (1) (Joules) moment of inertia about the hinge (kg.m) O a. 0.8 O b.0.97 O c.0.64 O d. 1.13 O e. 0.32 work due weight (N.m)

A slender 12.7-kg rod can rotate in a vertical plane about a pivot at A. A spring of constant k= 121 N/m and of unstretched length 370 mm is attached to the rod as shown. Knowing that the rod is released from rest in position (1) (0=0°), it has rotated through 90° to reach position (2) ( 0= 90°) 400 mm K 0=D0 200 mm B 300 mm 200 mm 0=90 kinetic energy at position (1) (Joules) moment of inertia about the hinge (kg.m) O a. 0.8 O b.0.97 O c.0.64 O d. 1.13 O e. 0.32 work due weight (N.m)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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