Question

which situation shows constant velocity?

choose an answer
a motorcycle speeding up
a truck moving at 15 m/s in a straight line
a falling rock
a person jogging around a curve

Explanation:

Step 1: Define constant velocity

Velocity is a vector quantity requiring constant speed and direction.

$$\vec{v} = \text{constant}$$

Step 2: Analyze the options

A straight path at fixed speed maintains constant velocity.

$$v = 15\text{ m/s}, \theta = \text{constant}$$

Answer:

A truck moving at \(15\text{ m/s}\) in a straight line