Question

define speed write its mathematical expression and SI unit state whether it is a scalar or vector quantity​

Answer 1

Answer:

The distance travelled per second by a moving object is called it's speed.

speed v = distance S ÷ Time t.

It is a scalar quantity

Answer 2

Answer:

Speed is the amount of distance travelled in unit time. It’s expression is the total distance / total time. It’s SI unit is km/hr and it is a scalar quantity. The difference between speed and velocity is given in photo