- #1
aa_o
- 24
- 4
Homework Statement
Homework Equations
F = ma
The Attempt at a Solution
The gravity pulls on m with a force Fg:
Fg = m*g
This force is directly translated into pulling the total mass m+M with an acceleration a:
(m+M)*a = Fg <=> a = Fg / (m+M) = m*g / (m+M)
with this acceleration, we can calculate the time it takes to drop the distance, d:
d = 1/2 * a * t^2 <=> t = sqrt(2*d / a)
This yields a time of t = 1.73 s, but the answers says 1.0 s.
What am doing wrong!?