A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same speed. Which of the following has changed?

A. velocity
B. gravity
C. mass
D. speed

Velocity Because velocity is speed with direction. In this scenario, the speed has not changed, but the direction did.

Answered by zeen | 2024-06-10

When a car transitions from traveling south to traveling west while maintaining a speed of 69 miles per hour, the aspect that has changed is its a) velocity. Velocity is a vector quantity, which means it has both magnitude and direction. Unless the car changes direction, its speed, which is a scalar quantity representing only the magnitude of motion, remains constant. Therefore, when the car changes direction, while maintaining the same speed, only its velocity is affected, not its gravity, mass, or speed.

Answered by BritMarling | 2024-06-24

The quantity that has changed is A. velocity, because the car has changed its direction while maintaining the same speed. Gravity and mass remain constant, and speed has not changed. Therefore, although the speed is constant at 69 miles per hour, the direction change affects the velocity.
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Answered by zeen | 2024-12-26