Question

Two fixed frictionless inclined planes making an angle 30° and 60° with the vertical are shown in the figure. Two blocks A and B are placed on the two planes. What is the relative vertical acceleration of A with respect to B?

(a) 4.9ms^–2 in vertical direction
(b) 4.9ms^–2 in horizontal direction
(c) 9.8ms^–2 in vertical direction
(d) zero

Answer 1

(a) : The acceleration of the body down the smooth inclined plane is a = gsinθ
It is along the inclined plane.
where θ is the angle of inclination