Question

1.A 60.0-kg student runs at a constant velocity up a flight of stairs. If the vertical distance of the stairs is 3.2 m, the work done against gravity is ___x10³ J (Give your answer with the correct number of sig digs and do not include units).

Answer 1

$$W=mgh\\W=(60)(9.8)(3.2)=1.9\cdot10^3\ J$$