Answer:
8.96 m/s, upward direction
Explanation:
Given that, the initial velocity of the ball is,
And the acceleration in the downward direction is positive but in this situation the acceleration will be negative so,
And according to question vertical displacement is,
Now suppose v be the final velocity of the ball.
Applying third equation of motion,
Here, u is the initial velocity, a is the acceleration, s is the displacement.
Substitute all the variables.
Therefore, the speed of ball when it is caught is 8.96 m/s in the upward direction.