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 length 40 cm. The z co-ordinate of the centre of mass of the box in cm, is

Question

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 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

Tardigrade Admin · Accepted Answer

If m is mass of one plate, then Zc m=(m ⋅ 20+m ⋅ 20+m ⋅ 20+m ⋅ 20+m ⋅ 0/5 m)=16 cm

Q. 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 length $40 c m$ . The $z$ co-ordinate of the centre of mass of the box in $c m$ , is

12

16

20

22

If $m$ is mass of one plate, then
$Z_{c m} = \frac{m \cdot 20 + m \cdot 20 + m \cdot 20 + m \cdot 20 + m \cdot 0}{5 m} = 16 c m$

Q. 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 length 40cm. The z co-ordinate of the centre of mass of the box in cm, is

12

16

20

22

If m is mass of one plate, then Zcm​=5mm⋅20+m⋅20+m⋅20+m⋅20+m⋅0​=16cm

Q. 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 length $40 c m$ . The $z$ co-ordinate of the centre of mass of the box in $c m$ , is

If $m$ is mass of one plate, then
$Z_{c m} = \frac{m \cdot 20 + m \cdot 20 + m \cdot 20 + m \cdot 20 + m \cdot 0}{5 m} = 16 c m$