While training, the athlete pushes a mass of pounds up an inclined surface for a distance of m at a steady pace. The incline is positioned at a deg angle above the horizontal axis. A frictional force of N acts between the mass and the inclined surface. Note: kg is equivalent to pounds. a Find the work done by the frictional force.

b Determine the work done by the legs pushing in Cal. J Cal

c Find the legs pushing force.

Answer rating: 100% (QA)

To find the work done by the frictional force the work done by the legs and the legs pushing force well need to use the workenergy principle and trigo... View the full answer