- Messages
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- 53
You have to understand projectile motion to understand 14. The vertical component of the velocity at the highest point during a parabolic trajectory will be 0, and its horizontal component will stay the same throughout.Ty, I still don't understand 14, 19
In 19, all you have to do is put in numbers into the formulas I've given you. You're given the pressure, which is F/A. They want you to find the density. Density=m/v. To get m, you'll need to divide F/g (g is a constant). To get V, you'll need to multiply A with the height, which is given in the question.