Question
A 140 kg sleigh is pulled by one horse at a constant velocity for a distance of 0.90 km on a level snowy surface. The coefficient of kinetic friction between the sleigh runners and the snow is 0.25.
what is the work done by force?
what is work done by friction?
what is the work done by force?
what is work done by friction?
Answers
drwls
Work done by horse:
= (friction force) x (distance)
= M*g*(0.25)(900 m)
= 140*9.8*0.25*900 = ___ joules
The work done by friction is minus the same number.
= (friction force) x (distance)
= M*g*(0.25)(900 m)
= 140*9.8*0.25*900 = ___ joules
The work done by friction is minus the same number.