AT what angle two forces (P +Q) and (P-Q) act so that resultant is ` (i) sqrt(2 P^2 + Q^2) (ii) sqrt(2 P^2 + Q^2) (iii) sqrt(2 P^2 + Q^2) .

At what angle do two forces (P+Q) and (P-Q) act so that the resultant is sqrt(3P^2+Q^2)

At what angle do the two forces (P+Q) and (P-Q) act so that the resultant is sqrt(3P^(2)+Q^(2)) ?

If AM and GM of x and y are in the ratio p: q, then x: y is : a) p - sqrt(p^(2)+ q^(2)) : p +sqrt (p^(2)+ q^(2)) b) p +sqrt(p^(2) - q^ (2) ) : p- sqrt(p^(2)-q^(2)) c) p : q d) p + sqrt(p^(2) + q^(2)) : p-sqrt(p^(2) + q^(2))

When the angle between forces P and Q is alpha , magnitude of the resultant is 5sqrt(P^2+Q^2) . When th angle between them changes to (90^@-alpha) , magnitude of the resultant changes to 3sqrt(P^2+Q^2) . Prove thet tan alpha=1/3 .

If the resultant of two forces of magnitudes P and Q acting at a point at an angle of 60^(@) is sqrt(7) Q , then P/Q is

Resultant of two forces P and Q is sqrt(3) Q . The resultant is inclined at 30^@ with P . Show that, either P =Q or P=2Q.

If the resultannt of two forces of magnitudes P and Q acting at a point at an angle of 60^(@) is sqrt(7)Q , then P/Q is