Explain how lee can use geometry to figure out how much water would have been in the box

Volume is amount of space a 3-dimensional takes up or can contain. If the box was full of water, find the volume of the box using

Volume = Length x Width x Height

if the measurements are in inches your answer should be in inches cubed (in^3)

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