The rod of the fixed hydraulic cylinder is moving to the left with a constant speed va = 18 mm/s. determine the acceleration ab of slider b when sa = 370 mm. the length of the cord is 1515 mm, and the effects of the radius of the small pulley at a may be neglected. the acceleration ab is positive if up.

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

probably not if net force is zero

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards