Answer:
-926.67 m/s²
The negative sign indicates the direction is upward
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s² (positive downward and negative upward)
[tex]v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times 9.81\times 19.3+0^2}\\\Rightarrow v=19.46\ m/s[/tex]
The ball will hit the ground at 19.46 m/s
[tex]v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{0-19.46}{0.021}\\\Rightarrow a=-926.67\ m/s^2[/tex]
The acceleration of the clay ball is -926.67 m/s²
The negative sign indicates the direction is upward.
