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In figure (4), the crate is initially at rest on the ground. If the motor exerts a force of F = (600 + 2 s) N on the cable. 5) What is the speed of the 10 kg crate when it rises to s = 10 m. a) 17.2 m/s e) 49.7 m/s b) 23.8 m/s f) 29.2 m/s d) 12.5 m/s g) None of them c)59.2 m/s 15 Figure (4)

In figure (4), the crate is initially at rest on the ground. If the motor exerts a force of F = (600 + 2 s) N on the cable. 5) What is the speed of the 10 kg crate when it rises to s = 10 m. a) 17.2 m/s e) 49.7 m/s b) 23.8 m/s f) 29.2 m/s d) 12.5 m/s g) None of them c)59.2 m/s 15 Figure (4)

Elements Of Electromagnetics
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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In figure (4), the crate is initially at rest on the ground. If the motor exerts a force of F = (600 + 2 s?)N on the cable. 5) What is the speed of the 10 kg crate when it rises to s = 10 m. a) 17.2 m/s e) 49.7 m/s b) 23.8 m/s f) 29.2 m/s c)59.2 m/s d) 12.5 m/s g) None of them 15 m Figure (4) In figure (5), if the 50 kg load A is hoisted by motor M so that the load has a constant velocity of 1.5 m/s. 6) What is the power input to the motor, which operates at an efficiency 60 % or (0.6)? a) 589.2 W b) 919.7 W c) 488.3 W d) 125.9 W 1.5 m/s e) 712.4 W f) 817.5 W g) None of them Figure (5) 2 m In figure (6), the 8 kg collar is given a downward velocity of 4 m/s when it is at A. If the spring has an unstretched length 4 m/s of 1 m and a stiffness of (K = 30 N/m). k = 30 N/m 7) What is the velocity of the collar at s = 1? Figure (6) a) 2.29 m/s e) 4.35 m/s b) 13.44 m/s f) 24.24 m/s c) 5.26 m/s g) None of them d) 19.18 m/s
Transcribed Image Text:In figure (4), the crate is initially at rest on the ground. If the motor exerts a force of F = (600 + 2 s?)N on the cable. 5) What is the speed of the 10 kg crate when it rises to s = 10 m. a) 17.2 m/s e) 49.7 m/s b) 23.8 m/s f) 29.2 m/s c)59.2 m/s d) 12.5 m/s g) None of them 15 m Figure (4) In figure (5), if the 50 kg load A is hoisted by motor M so that the load has a constant velocity of 1.5 m/s. 6) What is the power input to the motor, which operates at an efficiency 60 % or (0.6)? a) 589.2 W b) 919.7 W c) 488.3 W d) 125.9 W 1.5 m/s e) 712.4 W f) 817.5 W g) None of them Figure (5) 2 m In figure (6), the 8 kg collar is given a downward velocity of 4 m/s when it is at A. If the spring has an unstretched length 4 m/s of 1 m and a stiffness of (K = 30 N/m). k = 30 N/m 7) What is the velocity of the collar at s = 1? Figure (6) a) 2.29 m/s e) 4.35 m/s b) 13.44 m/s f) 24.24 m/s c) 5.26 m/s g) None of them d) 19.18 m/s
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