Atwood Machine

Atwood Machine Controls

Mass m₁ (kg)

3.0 kg

Mass m₂ (kg)

1.0 kg

Pulley radius R (m)

0.12 m

Pulley J (kg·m²)

0.000 kg·m²

Friction b (N·m·s)

0.020 N·m·s

Show Forces Show Trails

Legend — Vectors shown:
Tension, Weight.

$$\textbf{Equation for Acceleration}$$

$$ a = \frac{(m_1 - m_2)g - \dfrac{b}{R}\,\omega}{m_1 + m_2 + \dfrac{J}{R^2}} $$

Tip: change masses, pulley inertia (J) or friction (b) to see dynamics.

KAZ | Atwood Machine | Inspired by 3Blue1Brown