Conclusion When there is a constant unbalanced force applied in the same direction as the motion, speed will ___________________ and acceleration will _____________________________. When there is an increasing unbalanced force applied in the same direction as the motion, speed will ___________________ and acceleration will ________________________. When there is a constant unbalanced force applied in the opposite direction as the motion, speed will ___________________ and acceleration will ________________________. When there is an increasing unbalanced force applied in the opposite direction as the motion, speed will ___________________ and acceleration will ________________________.

When an unbalanced force is applied in the same direction as the motion of an object, the object's speed will increase, while its acceleration will remain constant. In cases where the unbalanced force is consistently applied and aligned with the object's motion, its speed will progressively rise, resulting in an increasing acceleration. Conversely, when a constant unbalanced force acts in the opposite direction to the object's motion, the speed of the object will decrease, and its acceleration will remain constant. If the force opposing the motion becomes stronger over time, the object's speed will decrease even further, leading to an increasing negative acceleration.

The scenarios highlight the direct relationship between unbalanced forces, speed, and acceleration, demonstrating how different force applications influence the motion characteristics of an object.

1) Constant Unbalanced Force in the Same Direction:

Speed: Increase

Acceleration: Constant

2) Increasing Unbalanced Force in the Same Direction:

Speed: Increase

Acceleration: Increase

3) Constant Unbalanced Force in the Opposite Direction:

Speed: Decrease

Acceleration: Constant

4) Increasing Unbalanced Force in the Opposite Direction:

Speed: Decrease

Acceleration: Increase

Conclusion:

Same Direction, Constant Force: Speed increases, acceleration remains constant.

Same Direction, Increasing Force: Speed increases, acceleration increases.

Opposite Direction, Constant Force: Speed decreases, and acceleration remains constant.

Opposite Direction, Increasing Force: Speed decreases, acceleration increases.

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Final answer:

The effects of unbalanced forces on speed and acceleration depend on whether the force is constant or increasing and whether it is applied in the same or opposite direction as the motion. A constant or increasing force in the same direction as the motion increases speed and acceleration, while in the opposite direction, it causes decrease or deceleration.

Explanation:

When there is a constant unbalanced force applied in the same direction as the motion, the speed will increase and acceleration will remain constant, since force and acceleration are directly proportional according to Newton's Second Law of Motion.

When there is an increasing unbalanced force applied in the same direction as the motion, both the speed and acceleration will increase, as increased force results in increased acceleration, leading to an increase in speed over time.

When there is a constant unbalanced force applied in the opposite direction as the motion, the speed will decrease and the acceleration will be negative, which represents a deceleration or slowing down of the object.

When there is an increasing unbalanced force applied in the opposite direction as the motion, the speed will decrease at an increasing rate and the acceleration will be increasingly negative, implying an increasing rate of deceleration.

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