A dart is thrown at a dartboard 3.90 m away. When the dart is released at the same height as the center of the dartboard, it hits the center in 0.555 s

Question

At what angle relative to the floor was the dart thrown?

Answer 1

0 degrees?

Answer 2

3.9 = vo cosθ (.555)
½ g (5552 ) = vo sinθ
Divide eq 2 by eq 1 to clear vo do a tan-1 to solve