Question Reads: " A passenger in a hot air balloon throws a ball with an innitial unknown velocity. the ball accelerates at 9.8m/s down for 2.0s. at which time its instantenous velocity is 24m/s [45 below the horizontal]. determine the balls innital velocity "
vf = vi + at
The Attempt at a Solution
ok, these kinds of problems are very new to me.
i made vf = 24sine45 since we are only discussing the y direction speed.
and vi = visinetheta.
but the answer says 17m/s [10 degress above horizontal]
where did 17 come from along with the angle ? please guide me