Assume your mass is 60 kg. The acceleration due to gravity is 9.8 m/s 2. How much work against gravity do you do when you climb a flight of stairs 2.9 m high? Answer in units of J.

W=1705.2 J

Explanation:

Given that

mass, m = 60 kg

Acceleration due to gravity, g = 9.8 m/s²

Height, h = 2.9 m

As we know that work done by a force given as

W = F. d

F=force

d=Displacement

W=work done by force

Now by putting the values

F = m g (Acting downward)

d = h (Upward)

W = m g h (work done against the force)

W = 60 x 9.8 x 2.9 J

W=1705.2 J

Therefore the answer will be 1705.2 J.