Physics

Given:
Vi = 0 m/s (initial velocity),
a = 9.8 m/s² (acceleration due to gravity),
t = 2.0 s (time).

To determine the velocity of the ball just before it hits the sidewalk (Vf), we can use the equation:

Vf = Vi + at

Where:
Vf is the final velocity,
Vi is the initial velocity (which is 0 m/s since the ball is dropped),<...