Question

Which of the following quantities depend on the state of rest and motion of the body : (a) mass (b) length (c) time (d) charge (e) charge density (f) phase Give reason for your answer.

Answer 1

thats mass
cuz mass is the only physical quantity that is inversely proportional to velocity acc. to one of the expression 
hence mass

Answer 2

Answer:

mass,length,charge density