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Q. The mass of a uniform ladder of length 5m is 20 kg. A person of mass 60kg stand on the ladder at a height of 2m fit)m the bottom. The position of centre of mass ofthe ladder and man from the bottom is

Solution:

Mass of ladder acts at b.5m
Mass of man acts at 2m
$x= \frac{m_1x_1 + m_2x_2}{m_1+m_2}$