In projectile motion, assuming there is no air resistance o gravitational acceleration affects motion on both x and y axis 0 vertical motion affects the horizontal motion horzontal motion affects the vertical motion o vertical ard horortal motion are "dependent bom each other

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