Question

MCQ (100)
Q2. The necessary force P, applied parallel to an
inclined plane having inclination a with horizontal
to move a body of weight W up the plane is equal to
(A) Wsina/cos
(B) Wsin(a+ø)/cos
(C) Wcos(a+ø)/cos
(D) Wtan(a+Ø)/cos​

Answer 1

Answer:

(B) Wsin(a+ø)/cos

Explanation:

(B) Wain(a+ø)/cos