Question

When is acceleration of a body is negative.Give 2 example of situation when body is negative and positive?

Answer 1

Answer:

When an object is speeding up, the acceleration is in the same direction as the velocity. Thus, this object has a positive acceleration. In Example B, the object is moving in the negative direction (i.e., has a negative velocity) and is slowing down.

Answer 2

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.

A ball thrown vertically upwards is moving with a negative acceleration as the velocity decreases with time..