A. frictional force
B. viscosity
C. surface friction
D. all of the above
E. none of the above
Answer
Answer
D. all of the above
Submitted by: Engr. Abdul Hafeez
A. frictional force
B. viscosity
C. surface friction
D. all of the above
E. none of the above
Submitted by: Engr. Abdul Hafeez