A box has a mass of 120 kg and the coefficients of friction and coefficients of friction between this and the inclined surface are uk = 0.5. The box starts from rest and the motor shown exerts a tension of T = 1220 + 200t Newton. a) What impulse is applied to the box during the first second of movement? b) What is the speed of the box after 2 seconds? 30

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A box has a mass of 120 kg and the coefficients of friction and coefficients of friction
between this and the inclined surface are uk = 0.5. The box starts from rest and the motor shown
exerts a tension of T = 1220 + 200t Newton.
a) What impulse is applied to the box during the first second of movement?
b) What is the speed of the box after 2 seconds?
30
Transcribed Image Text:A box has a mass of 120 kg and the coefficients of friction and coefficients of friction between this and the inclined surface are uk = 0.5. The box starts from rest and the motor shown exerts a tension of T = 1220 + 200t Newton. a) What impulse is applied to the box during the first second of movement? b) What is the speed of the box after 2 seconds? 30
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