00. Centre of Mass
Rotational Motion

269364 Two blocks of masses\(10 \mathrm{~kg}\) and \(30 \mathrm{~kg}\) are placed along a vertical line if the first block is raised through a height of \(7 \mathrm{~cm}\) then the distance through the second mass should be moved to raise the centre of mass of the system by \(1 \mathrm{~cm}\) is

1 \(1 \mathrm{~cm}\) up
2 \(1 \mathrm{~cm}\) down
3 \(2 \mathrm{~cm}\) down
4 \(2 \mathrm{~cm}\) up
Rotational Motion

269423 The distance ofcentre of mass from ' \(O\) 'is

1 \(0.21 \mathrm{~m}\)
2 \(0.35 \mathrm{~m}\)
3 \(0.42 \mathrm{~m}\)
4 \(0.48 \mathrm{~m}\)
Rotational Motion

269424 Four bodies of masses\(1,2,3,4 \mathrm{~kg}\) respectively are placed at the comers of a square of side ' \(a\) '. Coordinates of centre of mass are (take \(1 \mathrm{~kg}\) at the origion, \(2 \mathrm{~kg}\) on \(\mathrm{X}\)-axis and \(4 \mathrm{~kg}\) on Y-axis)

1 \(\frac{7 a}{10}, \frac{a}{2)
2 \(\frac{a}{2}, \frac{7 a}{10}\)
3 \(\frac{a}{2}, \frac{3 a}{10}\)
4 \(\frac{7 a}{10}, \frac{3 a}{2}\)
Rotational Motion

269425 A uniform rod of length one meter is bent at its midpoint to make\(90^{\circ}\). The distance of centre of mass from the centre of rod is (in cm)

1 20.2
2 13.4
3 15
4 35.36
Rotational Motion

269364 Two blocks of masses\(10 \mathrm{~kg}\) and \(30 \mathrm{~kg}\) are placed along a vertical line if the first block is raised through a height of \(7 \mathrm{~cm}\) then the distance through the second mass should be moved to raise the centre of mass of the system by \(1 \mathrm{~cm}\) is

1 \(1 \mathrm{~cm}\) up
2 \(1 \mathrm{~cm}\) down
3 \(2 \mathrm{~cm}\) down
4 \(2 \mathrm{~cm}\) up
Rotational Motion

269423 The distance ofcentre of mass from ' \(O\) 'is

1 \(0.21 \mathrm{~m}\)
2 \(0.35 \mathrm{~m}\)
3 \(0.42 \mathrm{~m}\)
4 \(0.48 \mathrm{~m}\)
Rotational Motion

269424 Four bodies of masses\(1,2,3,4 \mathrm{~kg}\) respectively are placed at the comers of a square of side ' \(a\) '. Coordinates of centre of mass are (take \(1 \mathrm{~kg}\) at the origion, \(2 \mathrm{~kg}\) on \(\mathrm{X}\)-axis and \(4 \mathrm{~kg}\) on Y-axis)

1 \(\frac{7 a}{10}, \frac{a}{2)
2 \(\frac{a}{2}, \frac{7 a}{10}\)
3 \(\frac{a}{2}, \frac{3 a}{10}\)
4 \(\frac{7 a}{10}, \frac{3 a}{2}\)
Rotational Motion

269425 A uniform rod of length one meter is bent at its midpoint to make\(90^{\circ}\). The distance of centre of mass from the centre of rod is (in cm)

1 20.2
2 13.4
3 15
4 35.36
Rotational Motion

269364 Two blocks of masses\(10 \mathrm{~kg}\) and \(30 \mathrm{~kg}\) are placed along a vertical line if the first block is raised through a height of \(7 \mathrm{~cm}\) then the distance through the second mass should be moved to raise the centre of mass of the system by \(1 \mathrm{~cm}\) is

1 \(1 \mathrm{~cm}\) up
2 \(1 \mathrm{~cm}\) down
3 \(2 \mathrm{~cm}\) down
4 \(2 \mathrm{~cm}\) up
Rotational Motion

269423 The distance ofcentre of mass from ' \(O\) 'is

1 \(0.21 \mathrm{~m}\)
2 \(0.35 \mathrm{~m}\)
3 \(0.42 \mathrm{~m}\)
4 \(0.48 \mathrm{~m}\)
Rotational Motion

269424 Four bodies of masses\(1,2,3,4 \mathrm{~kg}\) respectively are placed at the comers of a square of side ' \(a\) '. Coordinates of centre of mass are (take \(1 \mathrm{~kg}\) at the origion, \(2 \mathrm{~kg}\) on \(\mathrm{X}\)-axis and \(4 \mathrm{~kg}\) on Y-axis)

1 \(\frac{7 a}{10}, \frac{a}{2)
2 \(\frac{a}{2}, \frac{7 a}{10}\)
3 \(\frac{a}{2}, \frac{3 a}{10}\)
4 \(\frac{7 a}{10}, \frac{3 a}{2}\)
Rotational Motion

269425 A uniform rod of length one meter is bent at its midpoint to make\(90^{\circ}\). The distance of centre of mass from the centre of rod is (in cm)

1 20.2
2 13.4
3 15
4 35.36
Rotational Motion

269364 Two blocks of masses\(10 \mathrm{~kg}\) and \(30 \mathrm{~kg}\) are placed along a vertical line if the first block is raised through a height of \(7 \mathrm{~cm}\) then the distance through the second mass should be moved to raise the centre of mass of the system by \(1 \mathrm{~cm}\) is

1 \(1 \mathrm{~cm}\) up
2 \(1 \mathrm{~cm}\) down
3 \(2 \mathrm{~cm}\) down
4 \(2 \mathrm{~cm}\) up
Rotational Motion

269423 The distance ofcentre of mass from ' \(O\) 'is

1 \(0.21 \mathrm{~m}\)
2 \(0.35 \mathrm{~m}\)
3 \(0.42 \mathrm{~m}\)
4 \(0.48 \mathrm{~m}\)
Rotational Motion

269424 Four bodies of masses\(1,2,3,4 \mathrm{~kg}\) respectively are placed at the comers of a square of side ' \(a\) '. Coordinates of centre of mass are (take \(1 \mathrm{~kg}\) at the origion, \(2 \mathrm{~kg}\) on \(\mathrm{X}\)-axis and \(4 \mathrm{~kg}\) on Y-axis)

1 \(\frac{7 a}{10}, \frac{a}{2)
2 \(\frac{a}{2}, \frac{7 a}{10}\)
3 \(\frac{a}{2}, \frac{3 a}{10}\)
4 \(\frac{7 a}{10}, \frac{3 a}{2}\)
Rotational Motion

269425 A uniform rod of length one meter is bent at its midpoint to make\(90^{\circ}\). The distance of centre of mass from the centre of rod is (in cm)

1 20.2
2 13.4
3 15
4 35.36
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here