An 18-lb block A slides in a vertical frictionless slot and is connected to moving support B by means of a spring AB of constant k=8 lb/ft. Knowing that the acceleration of the support is a=am sinwft where am =5 ft/s? and wf=6 rad/s, determine (a) the maximum displacement of block A, (b) the amplitude of the fluctuating force exerted by the spring on the block. An 18-lb block A slides in a vertical frictionless slot and is connected to a moving support B by means of a spring AB of constant k=8 Ib/ft. Knowing that the acceleration of the support is a=asin a,t. where a =5 fus and w, =6 rad/s, determine (a) the maximum displacement of block A, (b) the amplitude of the fluctuating force exerted by the spring on the block. a d sin @ft B.

An 18-lb block A slides in a vertical frictionless slot and is connected to moving support B by means of a spring AB of constant k=8 lb/ft. Knowing that the acceleration of the support is a=am sinwft where am =5 ft/s? and wf=6 rad/s, determine (a) the maximum displacement of block A, (b) the amplitude of the fluctuating force exerted by the spring on the block. An 18-lb block A slides in a vertical frictionless slot and is connected to a moving support B by means of a spring AB of constant k=8 Ib/ft. Knowing that the acceleration of the support is a=asin a,t. where a =5 fus and w, =6 rad/s, determine (a) the maximum displacement of block A, (b) the amplitude of the fluctuating force exerted by the spring on the block. a d sin @ft B.

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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E Expert Q&A
An 18-lb block A slides in a vertical frictionless
slot and is connected to moving support B by
means of a spring AB of constant k=8 lb/ft.
Knowing that the acceleration of the support is
a=am sinwft where am =5 ft/s² and wf=6 rad/s,
determine (a) the maximum displacement of
block A, (b) the amplitude of the fluctuating
force exerted by the spring on the block.
An 18-lb block A slides in a vertical frictionless slot and is connected to a
moving support B by means of a spring AB of constant k=8 lb/ft. Knowing
that the acceleration of the support is a=asin w,t, where a_ =5 f/s
and w, =6 rad/s, determine (a) the maximum displacement of block A, (b) the
amplitude of the fluctuating force exerted by the spring on the block.
a d sin @f

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