Question

Two people with the same mass climb the same flight of stairs. The first person climbs the stairs in 25 s; the second does so in 35 s. Which person does more work?

Answer 1

To determine which person does more work, we need to calculate the work done by each person. The person who climbs the stairs in a shorter time would do more work. The person who climbs the stairs in a shorter time (25 s) would do more work than the person who takes longer (35 s).

Step-by-step explanation:

To determine which person does more work, we need to calculate the work done by each person.

Work is equal to force multiplied by distance. In this case, the force is equal to the weight of the person, which is the mass of the person multiplied by the acceleration due to gravity (9.8 m/s^2).

The distance is the height of the stairs.

Let's calculate the work done by the first person:

Work = Force x Distance

= (mass x acceleration due to gravity) x distance

= (m x g) x d

= (m x 9.8) x d

Similarly, let's calculate the work done by the second person:

Work = (m x g) x d

Since the mass, acceleration due to gravity, and distance are the same for both people, the person who climbs the stairs in a shorter time (25 s) would do more work than the person who takes longer (35 s).