149696 Figure shows a thin rectangular copper plate with its centre of mass at origin \(O\) and side \(A B\) \(=2 \mathrm{BC}=2 \mathrm{~m}\).
If a quarter part of the plate (shown as shaded is removed, the centre of mass of the remaining plate would lie at)

149698 What is the distance of centre of mass of a half ring from centre if the ring has radius \(=0.5 \mathrm{~m}\) ?

149700 Two particles of masses in the ratio \(1: 2\) are placed along a vertical line. The lighter particle is raised through a height of \(9 \mathrm{~cm}\). To raise the centre of mass of the system by \(2 \mathrm{~cm}\), the heavier particle should be

149701 A \(30 \mathrm{~kg}\) boy stands at the far edge of a floating plank, whose near edge is against the shore of a river. The plank is \(10 \mathrm{~m}\) long and weighs \(10 \mathrm{~kg}\). If the boy walks to the near edge of the plank, how far from the shore does the plank move

149702 The masses and positions (in rectangular coordinates) of four particles are as follows: \(1 \mathrm{~kg}\) at \((\mathrm{a}, \mathrm{a}), 2 \mathrm{~kg}\) at \((-\mathrm{a}, \mathrm{a}), 3 \mathrm{~kg}\) at \((-\mathrm{a},-\mathrm{a})\) and \(4 \mathrm{~kg}\) at \((\mathrm{a},-\mathrm{a})\). The position vector of the centre of mass of the system of four particles is

149696 Figure shows a thin rectangular copper plate with its centre of mass at origin \(O\) and side \(A B\) \(=2 \mathrm{BC}=2 \mathrm{~m}\).
If a quarter part of the plate (shown as shaded is removed, the centre of mass of the remaining plate would lie at)

149698 What is the distance of centre of mass of a half ring from centre if the ring has radius \(=0.5 \mathrm{~m}\) ?

149700 Two particles of masses in the ratio \(1: 2\) are placed along a vertical line. The lighter particle is raised through a height of \(9 \mathrm{~cm}\). To raise the centre of mass of the system by \(2 \mathrm{~cm}\), the heavier particle should be

149701 A \(30 \mathrm{~kg}\) boy stands at the far edge of a floating plank, whose near edge is against the shore of a river. The plank is \(10 \mathrm{~m}\) long and weighs \(10 \mathrm{~kg}\). If the boy walks to the near edge of the plank, how far from the shore does the plank move

149702 The masses and positions (in rectangular coordinates) of four particles are as follows: \(1 \mathrm{~kg}\) at \((\mathrm{a}, \mathrm{a}), 2 \mathrm{~kg}\) at \((-\mathrm{a}, \mathrm{a}), 3 \mathrm{~kg}\) at \((-\mathrm{a},-\mathrm{a})\) and \(4 \mathrm{~kg}\) at \((\mathrm{a},-\mathrm{a})\). The position vector of the centre of mass of the system of four particles is

149696 Figure shows a thin rectangular copper plate with its centre of mass at origin \(O\) and side \(A B\) \(=2 \mathrm{BC}=2 \mathrm{~m}\).
If a quarter part of the plate (shown as shaded is removed, the centre of mass of the remaining plate would lie at)

149698 What is the distance of centre of mass of a half ring from centre if the ring has radius \(=0.5 \mathrm{~m}\) ?

149700 Two particles of masses in the ratio \(1: 2\) are placed along a vertical line. The lighter particle is raised through a height of \(9 \mathrm{~cm}\). To raise the centre of mass of the system by \(2 \mathrm{~cm}\), the heavier particle should be

149701 A \(30 \mathrm{~kg}\) boy stands at the far edge of a floating plank, whose near edge is against the shore of a river. The plank is \(10 \mathrm{~m}\) long and weighs \(10 \mathrm{~kg}\). If the boy walks to the near edge of the plank, how far from the shore does the plank move

149702 The masses and positions (in rectangular coordinates) of four particles are as follows: \(1 \mathrm{~kg}\) at \((\mathrm{a}, \mathrm{a}), 2 \mathrm{~kg}\) at \((-\mathrm{a}, \mathrm{a}), 3 \mathrm{~kg}\) at \((-\mathrm{a},-\mathrm{a})\) and \(4 \mathrm{~kg}\) at \((\mathrm{a},-\mathrm{a})\). The position vector of the centre of mass of the system of four particles is

149696 Figure shows a thin rectangular copper plate with its centre of mass at origin \(O\) and side \(A B\) \(=2 \mathrm{BC}=2 \mathrm{~m}\).
If a quarter part of the plate (shown as shaded is removed, the centre of mass of the remaining plate would lie at)

149698 What is the distance of centre of mass of a half ring from centre if the ring has radius \(=0.5 \mathrm{~m}\) ?

149700 Two particles of masses in the ratio \(1: 2\) are placed along a vertical line. The lighter particle is raised through a height of \(9 \mathrm{~cm}\). To raise the centre of mass of the system by \(2 \mathrm{~cm}\), the heavier particle should be

149701 A \(30 \mathrm{~kg}\) boy stands at the far edge of a floating plank, whose near edge is against the shore of a river. The plank is \(10 \mathrm{~m}\) long and weighs \(10 \mathrm{~kg}\). If the boy walks to the near edge of the plank, how far from the shore does the plank move

149702 The masses and positions (in rectangular coordinates) of four particles are as follows: \(1 \mathrm{~kg}\) at \((\mathrm{a}, \mathrm{a}), 2 \mathrm{~kg}\) at \((-\mathrm{a}, \mathrm{a}), 3 \mathrm{~kg}\) at \((-\mathrm{a},-\mathrm{a})\) and \(4 \mathrm{~kg}\) at \((\mathrm{a},-\mathrm{a})\). The position vector of the centre of mass of the system of four particles is

149696 Figure shows a thin rectangular copper plate with its centre of mass at origin \(O\) and side \(A B\) \(=2 \mathrm{BC}=2 \mathrm{~m}\).
If a quarter part of the plate (shown as shaded is removed, the centre of mass of the remaining plate would lie at)

149698 What is the distance of centre of mass of a half ring from centre if the ring has radius \(=0.5 \mathrm{~m}\) ?

149700 Two particles of masses in the ratio \(1: 2\) are placed along a vertical line. The lighter particle is raised through a height of \(9 \mathrm{~cm}\). To raise the centre of mass of the system by \(2 \mathrm{~cm}\), the heavier particle should be

149701 A \(30 \mathrm{~kg}\) boy stands at the far edge of a floating plank, whose near edge is against the shore of a river. The plank is \(10 \mathrm{~m}\) long and weighs \(10 \mathrm{~kg}\). If the boy walks to the near edge of the plank, how far from the shore does the plank move

149702 The masses and positions (in rectangular coordinates) of four particles are as follows: \(1 \mathrm{~kg}\) at \((\mathrm{a}, \mathrm{a}), 2 \mathrm{~kg}\) at \((-\mathrm{a}, \mathrm{a}), 3 \mathrm{~kg}\) at \((-\mathrm{a},-\mathrm{a})\) and \(4 \mathrm{~kg}\) at \((\mathrm{a},-\mathrm{a})\). The position vector of the centre of mass of the system of four particles is