You first need to find the coordinates of the COM of the folded shape, keeping in mind that the folded area would have double thickness therefore double the mass and you also need to take into account the particle at D. Then, form a triangle using the corrdinates you found and the dimensions of the lamina and work out the angle using trigonometry.
Can someone do this question please? It involves centres of mass
I'm having trouble with this question too. I'll post my working in a bit but I've asked almost everyone that I think will have even the slightest idea about how to answer the question but it's just ridiculous. I've already spent like 2 hours on it.
You first need to find the coordinates of the COM of the folded shape, keeping in mind that the folded area would have double thickness therefore double the mass and you also need to take into account the particle at D. Then, form a triangle using the corrdinates you found and the dimensions of the lamina and work out the angle using trigonometry.
however folding the shape doesn't make a triangle??
I'm having trouble with this question too. I'll post my working in a bit but I've asked almost everyone that I think will have even the slightest idea about how to answer the question but it's just ridiculous. I've already spent like 2 hours on it.