00:01
In this question, they have given that the block of this mass, small m, is sliding on this trihedral prism of angle alpha and the mass of this prism is given in the question that is equal to capital m.
00:18
So, in this question, we have to find the force exerted by the base of the prism.
00:23
Now, how can we find the force exerted by the base of the prism? first of all, let's draw the forces by this blocs.
00:32
So, according to the gravity, there will be a downward force that will be equal to small m multiply by g.
00:39
So if i draw the component here, this will be alpha.
00:43
So it will be equal to mg, cos alpha, right? and this will be its normal reaction due to the surface...