Final answer:
Acceleration in objects is directly related to force according to Newton's second law, resulting in changes in velocity and acceleration. Higher mass objects demand more force to accelerate due to this relationship.
Explanation:
Acceleration is related to external force through Newton's second law of motion, which states that force is equal to mass times acceleration (F = ma).
As per Newton's second law, force causes acceleration in an object. If a constant, nonzero force is applied to an object, it will result in a change in the object's velocity and acceleration.
Objects with higher mass require more force to accelerate them due to the direct relationship between force and acceleration.
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