Question

what do you understand by the term acceleration? when is acceleration positive and when is it negative? State the unit of acceleration in SI system.​

Answer 1

Answer:

acceleration is the rate of change of velocity wich means

(v-u)/t. v= final velocity,u= initial velocity,t= time taken

unit of acceleration is m/s x s( square)

Explanation:

acceleration positive means the   rate of change of velocity  is positive

acceleration negative means the rate of change of velocity is negative