A5.60 g bullet moving at 501.8 m/s penetrates a tree trunk to a depth of 4.59 cm. a) use work and energy considerations to find the magnitude of the force that stops the bullet. answer in units of n

Explanation:

Given

mass of bullet

velocity of bullet

Depth of penetration

According to the work energy theorem work done by all the force will be equal to change in kinetic energy of Particle

Suppose F is the force which is opposing the bullet motion

change in kinetic Energy

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.