Question

Define acceleration and give its SI unit. When is acceleration of a body

negative? Give two examples of situations in which acceleration of the body is

negative.​

Answer 1

Give two examples of situations in which acceleration of the body is negative. Acceleration is rate of change of velocity and its SI unit is m per sec square. Body has negative acceleration when the velocity is decreasing. When the car stops acceleration is negative as brakes are applied.09-Jul-2018

Explanation:

please mark me brainiest

Answer 2

Answer:

acceleration is the rate of change of velocity. Its SI unit is m/s².The acceleration of a body is said to be in negative when it's opposite to the direction of velocity.For example: 1) When a moving body slows down due to any reason, the speed decreases and the acceleration is negative. 2) A cyclist is cycling and stops after 60 seconds. While stopping, the speed deceases and therefore, it leads to retardation and acceleration is negative.