Question

Define acceleration and give its SI unit. When is acceleration of the body negative ?​

Answer 1

Answer:

Acceleration can be defined as the rate of change of velocity.. It is a vector quantity .. Its SI unit is meter/second^2. When the velocity of an object decreases,then the object is said to be moving with negative acceleration.. An example of negative acceleration would be a car breaking or decelerating.

Explanation:

Answer 2

Answer:

Acceleration: Acceleration can be defined as the rate of change of velocity.

<>It is a vector quantity.

<> Its SI unit is m/s².

<> When the velocity of an object decreases,then the object is said to be moving with negative acceleration.

• An example of negative acceleration would be a car breaking or decelerating.