Q8: The 15-lb suitcase A is released from rest at C. After it slides down the smooth ramp, it strikes the 10-lb suitcase B, which is originally at rest. If the coefficient of restitution between the suitcases is e = 0.3 and the coefficient of kinetic friction between the floor DE and each suitcase is u = 0.4, determine (a) the velocity of A ust before impact, (b) the velocities of A and B just after mpact, and (c) the distance B slides before coming to rest, %3! Ans.: (a) (va)ı = 19.66 ft/s = 19.7 ft/s D %3D (b) (va)2 = 9.435 ft/s = 9.44 ft/s – (va)2 = - 15.33 ft/s = 15.3 ft/s - (c) Su - 9.13 ft

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q8:
The 15-lb suitcase A is released from rest at C.
After it slides down the smooth ramp, it strikes the 10-lb
suitcase B, which is originally at rest. If the coefficient of
restitution between the suitcases is e = 0.3 and the
coefficient of kinetic friction between the floor DE and
each suitcase is Hk = 0.4, determine (a) the velocity of A
just before impact, (b) the velocities of A and B just after
impact, and (c) the distance B slides before coming to rest.
6 ft
B
E
Ans.: (a) (va) - 19.66 ft/s = 19.7 ft/s
(b) (va)2 = 9.435 ft/s = 9.44 ft/s-
(Vf)2 = 15.33 ft/s = 15.3 ft/s-
(c)
SB = 9.13 ft
Transcribed Image Text:Q8: The 15-lb suitcase A is released from rest at C. After it slides down the smooth ramp, it strikes the 10-lb suitcase B, which is originally at rest. If the coefficient of restitution between the suitcases is e = 0.3 and the coefficient of kinetic friction between the floor DE and each suitcase is Hk = 0.4, determine (a) the velocity of A just before impact, (b) the velocities of A and B just after impact, and (c) the distance B slides before coming to rest. 6 ft B E Ans.: (a) (va) - 19.66 ft/s = 19.7 ft/s (b) (va)2 = 9.435 ft/s = 9.44 ft/s- (Vf)2 = 15.33 ft/s = 15.3 ft/s- (c) SB = 9.13 ft
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