When the angle between force and displacement lies between `0^0 and 90^0` , work will be

A Force F acts on a body and displaces it by a distance S in direction at an angle theta with the direction of force ,(a) Write the expression for the work done by the force,(b)What should be the angle between the force and displacement so that the work done is (i)zero ,(ii)Maximum ?

In case of negative wark, the angle between the force and displacement is

Give Relation between Force and work.

What should be the angel between the direction of force and displacement for maximum and minimum work?

Prove The angle between two tangents to a circle may be 0^(@) .

If the angle between veca and vecc is 25^0 the angle between vecb and vecc is 65^0 and veca+vecb=vecc, then the angle between veca and vecb is (A) 40^0 (B) 115^0 (C) 25^0 (D) 90^0

The angle between the lines represented by x^(2)-y^(2)=0 is

Find the angle between x-axis and line joining points (0,0) and (1, 2) .

The angle between the line x = a and by+c= 0 , is

Determine the angle between the lines whose equation are 3x+y-7=0 and x+2y+9=0 ,