Question:

A student with a mass of 65 kg runs up a staircase as shown.

Last updated: 7/6/2022

A student with a mass of 65 kg runs up a staircase as shown.

A student with a mass of 65 kg runs up a staircase as shown. What is the work done against gravity? *use 10 m/s² for gravity* A. 780 J B. 455 J C. 7800 J