What is some basic Italian? I just started

Paolo is writing a personal narrative about how he overcame his fear of heights by riding a roller coaster. he is working on his thesis statement. which of the following sentences would be the best thesis statement?

Sometimes we lose when we win. he who laughs last laughs best. things are not always what they appear to be. it takes one to know one. assessment navigation

Atrajectory has an initial velocity of 1,000 meters per second, and 5 seconds later, it has a velocity of 500 meters per second. which is the acceleration of the trajectory?