She wants to calculate the density of one of these cubes. Blessy needs to measure two physical quantities.
One of these is the mass of the cube.
(a) Describe how she finds the mass of the cube.

this a false

explanation:

i think the answer would be reserve.

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