The acceleration due to gravity for any object, including 1 washer on the string, is always assumed to be BLANK m/s2. The mass of 3 washers, when converted to kg, is BLANK kg. The applied force of 3 washers will increase the applied force on the car to Blank N.

answer; (arch); good luck

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.

i would say