Question

what do you mean by acceleration? write it's unit and explain variable 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 (in that they have magnitude and direction). The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

SI unit: m/s2, m·s−2, m s−2

Answer 2

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what do you mean by acceleration?

↪️Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always.

write it's unit and explain variable acceleration.

↪️Acceleration has the dimensions of velocity (L/T) divided by time, i.e. L T−2. The SI unit of acceleration is the metre per second squared (m s−2); or "metre per second per second", as the velocity in metres per second changes by the acceleration value, every second.

SI unit: m/s2, m·s−2, m s−2

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