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Grade: 12th pass
        A body of mass 1kg and 2kg located (1,2) & (-1,3) respectively,then find out the centre of mass points.
2 years ago

Answers : (3)

Arun
23820 Points
							
Dear Anil
 

body A  has mass of 1 kg  and location (1,2)

body B has mass of 2kg and location (-1,3)

mcxc = m1x1 + m2x2

(1+2) xc = (1*1) + (2*-1)

 xc  = -1/3

similarly 

mc yc = m1 y1 + m2 y2

(1=2) yc = (1*2)+(2*3)

 yc= 8/3

hence the co-ordinates of the center of mass are ( -1/3 , 8/3)

 

Regards

Arun (askIITians forum expert)

2 years ago
ANIL KUMAR PARIDA
33 Points
							Given that 2 bodies 1kg & 2kg located at (1,2) & (-1,3) respectively. Let       M1=1kg ,   M2=2kg       X1=1 , X2=-1 , Y1=2 , Y2= 3We know from cartesian coordinate system that centre of mass for X co-ordinate isXcm= M1*X1+M2*X2/M1+M2        =1*1+2(-1)/3        =1-2/3=-1/3Similarly for Y co-ordinate,Ycm=M1*X1+M2*X2/M1+M2       =1*2+2*3/3       =2+6/3       =8/3Hence the centre of mass points are (-1/3) & (8/3)
						
2 years ago
Chandan
121 Points
							take the second coordia
						
2 years ago
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