An object is launched from the ground into the air at an angle of 38.0 o (above the horizon) towards a vertical brick wall that is 15.0 m horizontally from the launch point. If the ball takes 1.30 seconds to collide with the wall, with what speed was the ball launched?

Answer 1

In projectile motion, we can use the formula,
d = vo,x * t
or
d = vo cos(a) * t
where
d = distance traveled horizontally
vo = initial velocity
vo,x = initial horizontal velocity
a = angle
t = time

Substituting,
15 = vo * cos(38) * 1.30
vo = ?

hope this helps~ `u`

Answer 2

could you please who me full working out