- Some mischievous YouTubers have dropped a car from 150 feet up onto a custom-built trampoline.
- The trampoline is made from overlapping Kevlar layers and garage-door springs.
How much trampoline do you need to bounce a car? We now know the answer.
“Today we’ll be conducting some experiments to see what happens when you drop all sorts of stuff on a steel trampoline weighing two tons, with a mat made of Kevlar being held by 100 garage-door springs,” YouTuber Mark Rober explains. The trampoline is the long-awaited outcome of a YouTube challenge that was theorized, designed in CAD, and finally constructed for real.
The design was sent to a builder near the YouTubers who issued the challenge—in Australia. They use near-indestructible Kevlar that can only be cut with an angle grinder, and 144 garage-door springs that can each hold 450 pounds. You (we) do the math: that’s nearly 65,000 pounds of capacity.
While a car weighs much less than that an object in free fall experiences an increased “weight” due to the forces pulling it downward. When the work team tests the trampoline, the combined weight of like six adult men barely makes a dent.
From a 150-foot tower, they drop an exploratory watermelon that vaporizes on impact. Then they drop 20 bowling balls (so about 300 pounds), followed by 20 watermelons (about 400 pounds). A stability ball filled with water survives the bounce but explodes when it hits the ground—in slow motion, the ball flattens nearly to a 2D object on the surface of the trampoline.
The grand finale is the car, which you’ll have to watch for yourself. It likely isn't the production vehicle's normal curb weight as it appears the car, which looks like a Holden Barina, has been liberally gutted (likely for safety), leaving mostly just its wheels and its frame.
Regardless, the car doesn't fair well.
You Might Also Like