Spring-Powered Catapult
Garage Door Spring Energy Demonstration
Default
Side
Overhead
Close-Up
Live Telemetry
Energy Compare
Lift Force
0 lbs
Stored Energy
0 J
Wire Stress
0 ksi
Launch Vel.
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Distance
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Peak Height
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Impact Force
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LOW
Danger Rating
⚾ MLB Fastball
120 J
🎳 Bowling Ball @20mph
165 J
🔩 This Spring
0 J
🔫 9mm Handgun
500 J
Projectile
Bowling Ball
Mass
7 kg
Equiv. Drop
—
Wind Spring (¼ turns)
0 / 8.5 turns
Projectile
🎳 Bowling Ball
🧱 Cinder Block
🍉 Watermelon
🧍 Crash Dummy
⏪ Slow-Mo
LAUNCH ▶
↺ Reset
◉ SLOW MOTION ×0.15
Impact Results
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Launch m/s
—
Distance ft
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Peak Height ft
Click to dismiss & reset