A body of mass 25kg, moving at 3m/s on a rough horizontal floor is brought to after sliding through a distance of 2.5m on the floor. Calculate the coefficient of sliding friction.
3 answers
1.84
v²=u²+2as
3²=2as
9=2×a×2.5
a=9/5
a=1.8ms-²
F=ma
F=25×1.8=45N
F=mg=25×10=250
Coefficient of friction = limiting force/normal reaction
Coefficient =45/250
=0.18
3²=2as
9=2×a×2.5
a=9/5
a=1.8ms-²
F=ma
F=25×1.8=45N
F=mg=25×10=250
Coefficient of friction = limiting force/normal reaction
Coefficient =45/250
=0.18
Correct
1 answer