NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 1200-kg trailer is hitched to a 1400-kg car. The car and trailer are traveling at 66.7 km/h when the driver applies the brakes on both the car and the trailer. The braking force exerted on the car is 6667 N. Neglect any internal force between the trailer hitch and the car. Determine (a) the distance traveled by the car and the trailer before they come to a stop and (b) the braking force applied on the trailer. The distance traveled is m. The braking force applied on the trailer is N.

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.

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.