Acliff diver on an alien planet dives off of a 32 meter tall cliff and lands in a sea of hydrochloric acid 1.20 seconds later. assuming that the extra-terrestrial’s initial speed was zero, what is the free fall acceleration of this strange world?

44.4m/s^2

Explanation:

Use the formula...S = ut + 1/2at^2

where...S = 32m...u = 0m/st = 1.20s

32 = (0)(1.20) + 0.5(1.20^2)a

;Acceleration of free fall = 44.4m/s^2

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