Question detail

Forces and their interactions scenario: a box presses on a small contact area and changes pressure. Which answer best addresses Resultant forces and the objective to explain why an object can move at constant velocity when resultant force is zero?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Forces and their interactions

Question

A. In the pressure pad scenario, apply resultant force to explain why an object can move at constant velocity when resultant force is zero while keeping speed versus velocity separate.
B. In the pressure pad scenario, mix up speed versus velocity and ignore resultant force.
C. Use a general revision statement without applying Resultant forces to the situation.
D. Choose a different forces topic instead of explaining explain why an object can move at constant velocity when resultant force is zero.

Answer

The correct answer is: In the pressure pad scenario, apply resultant force to explain why an object can move at constant velocity when resultant force is zero while keeping speed versus velocity separate.

Explanation

The correct option is In the pressure pad scenario, apply resultant force to explain why an object can move at constant velocity when resultant force is zero while keeping speed versus velocity separate.. It is correct because the scenario says a box presses on a small contact area and changes pressure, which must be interpreted through Resultant forces. This directly supports the learning objective to explain why an object can move at constant velocity when resultant force is zero. Use values 3, 14, and 22 only if the question asks for a calculation. The answer earns credit by naming the relevant force or motion quantity, using units when needed, and avoiding the boundary error speed versus velocity.

Common mistake

Understanding Constant Velocity

Students often think that an object must be accelerating if it is moving, failing to recognize that it can move at a constant velocity when the resultant force is zero.

Emphasize that constant velocity means no change in speed or direction, which occurs when all forces acting on the object are balanced, resulting in a zero resultant force.

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