Question

four objects are situated along the y axis as follows: a 2.00kg object is at +3.00m. a 3.00kg object is at +2.50m, a 2.50kg object is at the origin ,and a 4.00kg object is at -0.500m. where is the center of mass of these objects?​

Answer 1

The centre of mass of the objects is (0,1)m .

What do you mean by Centre of mass?

The centre of mass is a position defined relative to an object or system of objects .

We have given

m1=2kg , y1= 3

m2= 3kg ,y2=2.5m

m3=2.5kg ,y3= 0m

m4=4kg , y4= -0.5m

Ycm=mixi/mi

→2×3+3×2.5+2.5×0+4×0.5/4.5

→1m

Centre of mass of these object is at (0,1)m .

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