Final answer:
The resultant force on a 6 kg ball with a horizontal acceleration of 4 m/s² is calculated using Newton's Second Law and is found to be 24 N.
Step-by-step explanation:
If the resultant acceleration of a 6 kg ball is 4 m/s² horizontally, then we can use Newton's Second Law of Motion to find the resultant force. Newton's Second Law states that the force acting on an object is equal to the mass of the object times its acceleration (F = ma). Therefore, to find the resultant force on the ball, we multiply the mass (6 kg) by the acceleration (4 m/s²).
We get F = 6 kg × 4 m/s² = 24 N (newtons).
Thus, the resultant force must be 24 N acting horizontally on the ball.