I think you need a real tutor. Every question you submit, has been responded to with directions, yet you keep coming back saying you don't understand. I have reread some of my responses, putting them in to algebra I terms for you to finish, yet you say you don't understand. At this point, you need a tutor. Discuss this immediately with your parents, as delaying it will just put you in a hole that is difficult to get out of.
Good luck.
An artillery shell is launched on a flat, horizontal field at an angle of α = 31.5° with respect to the horizontal and with an initial speed of v0 = 266 m/s.
What is the horizontal distance covered by the shell after 9.44 s of flight?
What is the height of the shell at this moment?
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