Three particles of masses 100g, 150g, and 200g respectively are placed at the vertices of an equilateral triangle of a side 0.5 m long. What is the position of the centre of mass of three particles?
1. | \(\left(\dfrac{5}{18} , \dfrac{1}{3 \sqrt{3}}\right) \) |
2. | \(\left(\dfrac{1}{4} , 0\right) \) |
3. | \(\left(0 , \dfrac{1}{4}\right) \) |
4. | \(\left(\dfrac{1}{3 \sqrt{3}} , \dfrac{5}{18}\right) \) |
Position of centre of mass of a triangular lamina as shown in the figure is:
1. | at the point \(P.\) | 2. | at the point \(G\). |
3. | at the point \(L\). | 4. | can't be determined. |
What is the position of centre of mass of a uniform L-shaped lamina (a thin flat plate) with dimensions as shown? The mass of the lamina is 3 kg.
1. | \(\left(\dfrac{6}{5} , \dfrac{6}{5}\right)\) | 2. | \(\left(\dfrac{1}{5} , \dfrac{6}{5}\right)\) |
3. | \(\left(\dfrac{5}{6} , \dfrac{5}{6}\right)\) | 4. | Can't be determined |