Home
Class 11
PHYSICS
20. A disc (of radius r cm) of uniform t...

20. A disc (of radius r cm) of uniform thickness and uniform density o has a square hole with sides of length (= cm. One corner of the hole 12 is located at the centre of the disc and centre of the hole lies on y-axis as shown. Then the v-coordinate of position of centre of mass of disc with hole (in cm) is (a) 2(1-1) (b) - 4(TT-14) (@) -462- (d) 3r 4(1-7) 4(1-12) 21. Figure shows a cubical box that has been constructed from uniform metal plate of negligible thickness. The box is open at the top and has edge 41 o length 40 cm. The z co-ordinate of the centre of mass of the box in cm, is (a) 12 (b) 16 (c) 20 (d) 22

Promotional Banner

Similar Questions

Explore conceptually related problems

Figure shown a cubical box that has been constructed from uniform metal plate of negligible thickness. The box is open at the top and has edge length 40 cm . The z co-ordinate of the centre of mass of the box in cm, is. .

A disc (of radius r cm) of uniform thickness and uniform density sigma has a square hole with sides of length l = (r )/(sqrt(2)) cm . One corner of the hole is located at the centre of the disc and centre of the hole lies y-axis as shown. Then the y-coordinate of position of centre of mass of disc with hole (in cm) is. .

A disc (of radius r cm) of uniform thickness and uniform density sigma has a square hole with sides of length l = (r )/(sqrt(2)) cm . One corner of the hole is located at the centre of the disc and centre of the hole lies y-axis as shown. Then the y-coordinate of position of centre of mass of disc with hole (in cm) is. .

There is a small hole at the centre of meta disc.On heating the size of the hole

A disc of radis R is cut out from a larger disc of radius 2R in such a way that the edge of the hole touches the edge of the disc. Locate the centre of mass of the residual disc.

A disc of radis R is cut out from a larger disc of radius 2R in such a way that the edge of the hole touches the edge of the disc. Locate the centre of mass of the residual disc.

A disc of radis R is cut out from a larger disc of radius 2R in such a way that the edge of the hole touches the edge of the disc. Locate the centre of mass of the residual disc.