Question

Four particles each of mass 1kg. are placed on four corners of a square of 1m. Find the coordinates of the center of mass of this system​

Answer 1

Explanation:

x

com

=

∑m

i

∑m

i

x

i

=

4

1×

2

1

+1×(−

2

1

)+1×(−

2

1

)+1×(

2

1

)

x

com

=0

Similarly y

cm

=

∑yi

∑m

i

y

i

y

cm

=

4

1×

2

1

+1×

2

1

+1×(−

2

1

)+1×(−

2

1

)

y

cm

=0

Hence coordinate of com

(x

cm

,y

cm

)=(0,0)

Option D.