Two blocks of msses 10 kg and 30 kg are placed along a vertical line. The first block is raised through a height of 7 cm. By what distance should the second mass be moved to raise the centre of mass by 1 cm?

Two blocks of msses 10 kg and 30 kg are placed along a vertical line.

1.	Two blocks of msses 10 kg and 30 kg are placed along a vertical line. The first block is raised through a height of 7 cm. By what distance should the second mass be moved to raise the centre of mass by 1 cm?
Answer» Two masses `m_1 and m_2` ar kept in a vertical line `m-1=10kg, m_2=30kg` The first block is raised through a height of 7 cm. The centre of mass raised by 1 cm. `:.1=(m_1y_1+m_2y_2)/(m_1+m_2)` `=(10xx7+30xxy_2)/40` `=70+30xxy_2)/40` `rarr 70+30y_2=40` `rarr 30y_2=-30` `rarr y_2=-1` the 30 kg body should be displaced 1 cm downward in order to raise the centre of mass through 1 cm.

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Two blocks of msses 10 kg and 30 kg are placed along a vertical line. The first block is raised through a height of 7 cm. By what distance should the second mass be moved to raise the centre of mass by 1 cm?

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