Coefficient of static friction (µs) is equal to . . . .
a) FN/fs,max
b) fs,max/FN
c) fs,min/FN
d) fk,max/FN
Coefficient of kinetic friction (µk) is equal to….
a) fk/fs
b) FN/fK
c) fk/FN
d) none
Coefficient of friction is . . . . . for a given pair of surfaces.
a) variable
b) constant
c) zero
c) negative
Coefficient of static friction of ice on ice is . . . .
a) 1
b) 0.01
c) 0.02
d) 0.1
Coefficient of kinetic friction of wood on wood is . . . . . .
a) 0.3
b) 0.03
c) 3
d) 0.23
Liquids and gases as a whole are called . . . . . .
a) liquid-gas
b) liquidis
c) third state of matter
d) fluids
