Answer:
[tex]a=5\ m/s^2[/tex]
Explanation:
Given that,
Initial velocity of the ball, u = 20 m/s
Final velocity, v = 30 m/s
Time, t = 2 seconds
Let us assume to find the acceleration of the ball. The rate at which the velocity of the ball is changing is called the acceleration of the ball. So,
[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{30-20}{2}\\\\a=5\ m/s^2[/tex]
So, the acceleration of the ball is [tex]5\ m/s^2[/tex]