Question

1. which of the following statements best describes what a force is? a push or pull that causes an object to accelerate. a change in velocity. motion that occurs simultaneously in both the horizontal and vertical directions. a change in position over time.

Explanation:

• Force is defined as a push or pull. According to Newton's second law \(F = ma\) (where \(F\) is force, \(m\) is mass, and \(a\) is acceleration), when a non - zero net force acts on an object, it causes the object to accelerate.
• A change in velocity (\(\Delta v\)) is acceleration (\(a=\frac{\Delta v}{\Delta t}\)), not a force.
• Motion that occurs simultaneously in both the horizontal and vertical directions is projectile motion (a type of motion, not a force).
• A change in position over time (\(\frac{\Delta x}{\Delta t}\)) is velocity (a measure of motion, not a force).

Answer:

A. A push or pull that causes an object to accelerate.