Originally Posted by Mr. X

A ball is thrown into the air from ground level. After a time t = 2 s, the ball has traveled to a position x1 = 26 m to the right of and y1 = 9 m up from where it was thrown (at this time, the x and y components of the ball's velocity are still positive). The axes show the x and y directions to be considered positive.


a) What was the x component of the initial velocity of the ball?

13 m/s

b) What was the y component of the initial velocity of the ball?

9 = vi(2) + .5(-9.8)(2)^2

vi = 14.3 m/s

c) What was the initial speed of the throw?


d) What was the initial angle of the throw relative to the horizontal? Please enter your answer in degrees.


e) What is the height of the ball at the top of its path?


I should get it if I know what b is.