Class Management Help Reading Quiz C4 Begin Date: l19/2017 12:01:00 AM Due Date:

Question

Class Management Help Reading Quiz C4 Begin Date: l19/2017 12:01:00 AM Due Date: 1/312017 2:00:00 PM End Date: 5/31/2017 10:00:00 AM 000%) Problem i: The three figures below show two small balls, of masses mi 1.8 kg and A) v m2 6.5 kg. 14 cm from the origin. What is thexcomponent of the center ofmass tus tus 4 33% Part (a) In figure (A), the po system, in centimeters. relative to the origin? Grade Summary 7 8 9 tano R Attempts remaaining: 456 cotano sino acoso 1 2 3 atan0 acotano sinho cosho tan cotanh0 Degrees Radians give up! Feedback Hintsi deduction per hint Hists remaining r component of the center of 33 Part b) In figure B). we have added the second mass a distance 77 Scana from the origin. What is the is now mass., centimeters. relative to the ongui g about the positions the balls, but the origin the coordinate system in figure (C), we have not chang of of to this Part (e) In is the x component the center mass, in c een the balls. 8.5 cm to the right of ball 1 What of

Explanation / Answer

a) center of mass = mx^2 = 1.8*(0.14)^2 = 0.03528 Kg-m^2

b) center of mass = ((m1m2)/(m1+m2))*x^2 = ((1.8*6.5)/*(1.8+6.5))*(0.775-0.14)^2 = 0.57 Kg- m^2

c) center of mass= remains the same as (b) as the distance between mass 1 and 2 is the same as in part two

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