Physics

Problem

Three students each lift the same

10\,\text{kg}

backpack from the floor to a shelf

2.0\,\text{m}

high. Student A takes

1.0\,\text{s}

, student B takes

2.0\,\text{s}

, and student C takes

4.0\,\text{s}

. Which ranking correctly orders the students’ average power outputs, from greatest to least? a)

C > B > A

A = B = C

A > B > C

B > A > C