A worker pushes on a crate, and it experiences a net force of 300 N. If the crate moves with an acceleration of 0.750 m/s2

,

what is its mass?

We are given:

F = 300N

acceleration (a) = 0.750 m/s²

Solving for the mass of the object:

We know from the second equation of motion:

F = ma

replacing the variables

300 = m * 0.75

m = 300 * 100/ 75

m = 300 * 4/3

m = 100 * 4

m = 400 kg

would be false hope this out

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.