when we talk about ourselves, our opinions, and the things that happen to us, we generally speak in the first person. the biggest clue that a sentence is written in the first person is the use of first-person pronouns. in the first sentence of this paragraph, the pronouns appear in bold text. we, us, our, and ourselves are all first-person pronouns. specifically, they are plural first-person pronouns. singular first-person pronouns include i, me, my, mine and myself.

ok, i see a large paragraph but don't see a question. what are you trying to ask?

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement