Question

Plz answer all the three questions

Answer 1

36(2)
37(3)
38(2) is the right option
in q36 ,forces are of equal magnitude
so minimum two equal forces having opposite direction keep an particle in equilibrium
in q 37, minimum three unequal forces two in the same direction and one in the opposite direction is needed
like three forces of 2,3,5N magnitude acting on a particle ,if 2N&3N act in the same direction and 5 N act in the opposite direction the particle in equilibrium.

inq 38 ,minimum two non coplaner forces are needed to keep a particle in equilibrium
like two non coplaner forces of equal magnitude one in xy plane and other in yz plane acting on a particle in opposite direction remains it in equilibrium.

hope u understand