Question

two spheres of mass 5kg and 10kg are situated on long stick of distance 10 metres. where does the centre of mass of system lies??​

Answer 1

Explanation:

given two spheres mass is 5kgs and 10kgs

distance=10m

centre of mass=5kgs×10kgs/10m

=5kgm

Answer 2

Center of mass will lie at a distance of 6.66 m from 5 kg mass

Explanation:

We have given two mass $m_1=5kg\ and\ m_2=10kg$

These are situated at a distance of 10 m

Let the distance of center of mass from 5 kg mass is x

Then distance from 10 kg mass = 10 -x

Mass will be balance is

If $m_1x=m_2(10-x)$

$5\times x=10\times (10-x)$

$5x=100-10x$

$15x=100$

x = 6.66 m

So center of mass will lie at a distance of 6.66 m from 5 kg mass

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