- #1

stormypanda

**1. The problem statement, all variables, and given/known data**

How much work does gravity do on a 1.9-mg raindrop as the drop falls to the ground from a cloud 2500 m above the ground?

## Homework Equations

W = FΔx

F = ma

## The Attempt at a Solution

I thought this problem would be pretty straightforward since I'd just use the equation for work directly. Δx is given as 2500 m. The mass of the raindrop is 1.9 mg which I converted to 1.9*10^-6 kg. Lastly, the acceleration is due to gravity so it is 9.8 m/s^2.

W = (1.9*10^-6 kg) * (9.8 m/s^2) * (2500 m)

= 0.04655 J

I got 0.04655 J and the site I'm doing these problems on states that my answer is incorrect. I'm not sure where I went wrong?