A man walks 8 m east in 12 seconds . What is the man's velocity ?

0.67m/s due east

Explanation:

Given parameters:

Displacement of the man  = 8m east

Time taken  = 12s

Unknown:

Velocity of the man  = ?

Solution:

The velocity of a body is the rate of displacement per time;

         Velocity  =  

       Velocity  =   = 0.67m/s due east

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is