9. Work & Energy

If you run at a constant speed of $6m/s$ for $3$ minutes, how far (in meters) will you travel?

Which of the following is an example of potential energy?

Which of the following objects possesses $kineticenergy$?

A particle of mass $m$ starts from rest at point A at height $h$ above point B. Ignoring friction and air resistance, what is the minimum speed the particle must have at point A to just reach point B?

Which statement best compares $\mathrm{potential energy}$ and $\mathrm{kinetic energy}$?

How are $\mathrm{potential energy}$ and $\mathrm{kinetic energy}$ related in a closed system?

A cantilever behaves like an ideal spring with a spring constant of $k$. What is the mechanical work done by the cantilever when its extension increases from $10nm$ to $15nm$?

Which of the following is a form of kinetic energy?