Answer :
The answer would be:
B. Acceleration is a vector quantity.
We can rule out the others because:
---Acceleration CAN be described with a negative number. The sign actually shows the direction. A negative number indicates a deceleration.
---Displacement change over time is the definition of velocity NOT acceleration.
---The SI unit for acceleration is m/s².
***A vector quantity is measure of magnitude and direction, which acceleration has.
Answer:
Acceleration is a vector quantity.
Explanation:
- Acceleration is defined as the rate of change of velocity per unit time.
- It is a vector quantity because it has both direction and magnitude.
- The acceleration of an object can be both negative and positive. If an object gains speed then it is positive otherwise it is negative.
- The units of accleartion are m/s^2.
- therefore, the only correct statement is that it is a vector quantity.
