Final answer:
The horizontal acceleration experienced by an 8kg bowling ball pushed from rest to a final velocity of 9 m/s in 4 seconds is 2.25 m/s².
Step-by-step explanation:
The horizontal acceleration experienced by an 8kg bowling ball pushed from rest to a final velocity of 9 m/s in 4 seconds can be determined using the equation of motion:
a = (v - u) / t
where a is the acceleration, v is the final velocity, u is the initial velocity (0 m/s since the bowling ball starts from rest), and t is the time taken.
Substituting the given values,
a = (9 m/s - 0 m/s) / 4 s = 9/4 m/s² = 2.25 m/s²
Thus, the correct answer is B. 2.25 m/s².