Question

7. Distinguish between speed & velocity.
8. Define acceleration. Write its SI unit.​

Answer 1

8. In physics or physical science, acceleration is defined as the rate of change (or derivative with respect to time) of velocity. It is thus a vector quantity with dimension length/time². In SI units, acceleration is measured in meters/second² using an accelerometer.

Hope this helps.

Answer 2

Answer:

speed is the scaler quantity and velocity is a vector quantity. and speed is the rate at which an object covers distance and velocity is the rate at which the position changes

8) Aceeleration is the rate of change of velocity .

S.I unit - meter/ second square