v = mg/b
1. What does b stand for?
2. I'm sure it is 40 m/s. I came up with multiple answers, but they were all smaller than 40 m/s.
3. They don't give a value for mass. (If I understand what b stands for, I may be able to figure it out.)
Well I know air resistance is proportional to velocity, but I don't see how I can find air resistance without knowing surface area, mass, density, temperature, etc.
Homework Statement
A steel ball is dropped from a great height. When its velocity is 20m/s its acceleration is 7.35 m/s^2. What is it's terminal velocity?
Homework Equations
V - V_o = at
F = ma
(Air resistance isn't given, so I don't think drag force can be used.)
The Attempt at a...