- #1

jmwachtel

- 35

- 0

## Homework Statement

A small piece of Styrofoam packing material is dropped from a height of 2.10 m above the ground. Until it reaches terminal speed, the magnitude of its acceleration is given by a = g - bv. After falling 0.400 m, the styrofoam effectively reaches its terminal speed, and then takes 4.90 s more to reach the ground.

(a) What is the value of the constant b?

(c) What is the acceleration when the speed is 0.150 m/s?

## Homework Equations

a = g-bv

- (a - g)/v = b

b = mg/vt (Don't know mass or terminal velocity.

## The Attempt at a Solution

I know that after the Syrofoam reaches it's terminal speed acceleration goes to 0 and the velocity is constant. I don't know the acceleration or really the velocity to solve for b. I think c can be solved once a is figured out, but I'm not sure how to get there.