A cyclist moves up a hill at a steady speed. The frictional force opposing the cyclist’s motion is $8.0\,\text{N}$. The cyclist uses $450\,\text{J}$ of energy to cover a distance of $20\,\text{m}$. What is the increase in the cyclist’s gravitational potential energy?
- A$160\,\text{J}$
- B$290\,\text{J}$
- C$440\,\text{J}$
- D$610\,\text{J}$