Question

what is acceleration​

Answer 1

Answer: In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector quantities. The orientation of an object's acceleration is given by the orientation of the net force acting on that object

Answer 2

Answer:

Acceleration is defined as rate of change of velocity. The acceleration is said to be positive, if it is in direction of velocity and is negative, if it is opposite to the direction of velocity.