Centre of gravity

Where is the centre of gravity of a semicircle?

• $\frac{4\pi}{3r}$ from centre

• $\frac{3r}{4\pi}$ from centre

• $\frac{4r}{3\pi}$ from centre

• $\frac{3\pi}{4r}$ from centre

Where is the C.G. of a circle ?

• it's centre

• any where of the circle

• out side the circle

• none of the above

Where is the CG of a triangle ?

• The point where the perpendicular bisector of

  three sides intersect

• The point where the three medians intersect.

• The point where bisector of three angles intersect

• none of the above

Find the length of x, where the centre of gravity is situated.

• 42.60 cm

• 48.33 cm

• 49.13 cm

• 60 cm

The centre of gravity of a cylinder lies:

• at the itersection of the diagonals

• at the intersection of the medians

• at a point on the middle axis

• at $\frac{1}{4}th$ of height from the base

The centre of gravity of a cone lies:

• at the intersection of diagonals

•  $\frac{1}{4}th$  of height from the base

• at a point on the middle axis

•  $\frac{1}{3}rd\$ of  height  from the base

The centre of gravity of the square lies at the intersection of its _________

Find the value of 'y' upto two decimal place.

Find the centre of gravity ( $\overline{X\ }$  and $\overline{Y\ }$  ) from point the  A.

• 15 cm, 25 cm

• 15.35 cm, 18.32 cm

• 13.18 cm, 16.82 cm

• 14.01 cm,  17.54 cm

Find the centre of gravity ( $\overline{X\ }$  ) upto two decimal place from the point A.  All dimensions are in cm.