144.2. A 600-lb block slides down an incline having a slope of 4 vertical to 3 horizontal. It starts from rest and, after moving 6 ft, strikes a spring whose modulus is 100 lb/in. If the coefficient of friction is 0.20, determine the maximum deformation of the spring and the maximum velocity of the block. 144.7. Through what distance must the 600-lb block of Illus. Prob. 1442 slide from rest before touching the spring if its velocity is 15 fps at the instant the spring is deformed 6 in.? Assume the spring constant is

144.2. A 600-lb block slides down an incline having a slope of 4 vertical to 3 horizontal. It starts from rest and, after moving 6 ft, strikes a spring whose modulus is 100 lb/in. If the coefficient of friction is 0.20, determine the maximum deformation of the spring and the maximum velocity of the block. 144.7. Through what distance must the 600-lb block of Illus. Prob. 1442 slide from rest before touching the spring if its velocity is 15 fps at the instant the spring is deformed 6 in.? Assume the spring constant is

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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Question

o rarticle Motion 54
Force
600 Ib
480 lb
EX=480-72-408 lb
360 lb
-%30.20
ft
N 360 lb
(b)
Force
-1200s 1b
- 1200 lb/ft
1200
=D0.34
408 Ib
(a)
(c)
Figure 144.2
144.2. A 600-1lb block slides down an incline having a slope
of 4 vertical to 3 horizontal. It starts from rest and, after moving
6 ft, strikes a spring whose modulus is 100 lb/in. If the coefficient
of friction is 0.20, determine the maximum deformation of the spring
and the maximum velocity of the block.
144.7. Through what distance must the 600-lb block of Illus. Prob.
1442 slide from rest before touching the spring if its velocity is 15 fps
at the instant the spring is deformed 6 in.? Assume the spring constant is
changed to 200 lb/in.

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