Escape Velocity Launcher

Rocket motion from action and reaction

Orbit is falling without hitting the ground

Tiny time differences become a map position

Calculate trajectory, range, max height, and time of flight for projectile motion. Visualize the parabolic path with an interactive time slider and velocity vectors.

Calculate voltage, current, resistance, and power with Ohm's law. Build series and parallel resistor networks with step-by-step equivalent resistance.

Visualize image formation with interactive ray diagrams for lenses and mirrors.

Solve constant-acceleration problems with step-by-step solutions and motion graphs.

Set central mass, semi-major axis, and eccentricity to animate elliptical orbits. Verify Kepler's Third Law, measure orbital velocity with the vis-viva equation, and compare circular and highly eccentric trajectories

Run a full projectile motion investigation. Three modes test optimal launch angle, R vs v² to derive g, and the effect of launch height. Replicated trials, regression, residuals, and percent-error analysis

Measure pendulum period at different lengths to derive gravitational acceleration. Plot T² vs L, compare small and large angle behavior, and explore planetary gravity presets