Two forces of magnitudes P = 40 N and Q = 60 N act at a point, making an angle of 60° between them. Using the parallelogram law, the resultant force (in N) and angle with force P (in degrees) are:

A particle is subjected to two coplanar horizontal forces acting along the same line: a force of 2.0 kN towards the right and a force of 1.5 kN towards the left. What is the net unbalanced horizontal force acting on the particle?

For a right circular solid cone of height h, the distance of the center of gravity from the base is .