Question

A raindrop of mass 3.26 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particle.(a) As it falls 115 m, what is the work done on the raindrop by the gravitational force?

Answer 1

Work done by the gravitational force is 37 mJ.

Step-by-step explanation:

It is given that,

Mass of the raindrop,
`m=3.26* 10^(-5)\ kg`

It falls from a height of, h = 115 m

It falls vertically at constant speed under the influence of gravity and air resistance. We need to find the work done on the raindrop by the gravitational force. It is given by :

`W=mgh`

`W=3.26* 10^(-5)\ kg* 9.8\ m/s^2* 115\ m`

W = 0.0367 J

or

W = 0.037 J = 37 mJ

So, the work done on the raindrop by the gravitational force is 37 mJ. Hence, this is the required solution.