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pushcart
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I weight 90.7kg. I fell 10.05m landing on soild concrete. how do I express the "power of my impact? in G-force? A relitive weight? I am self taught in very basic physics after a high school education.
Ouch. Were you rigging a stage when this happened? Did you break anything and/or need a ride to the hospital? That's a pretty significant fall.pushcart said:I weight 90.7kg. I fell 10.05m landing on soild concrete.
Ok, that makes sense. So the variable that I don't have, but can estimate is the time it took to change my momentum from falling speed to zero, "impulse"berkeman said:Ouch. Were you rigging a stage when this happened? Did you break anything and/or need a ride to the hospital? That's a pretty significant fall.
And as @fresh_42 is alluding to above, the "force" of impact is usually expressed as an "impulse", which is change of momentum (mass X velocity) versus time. The higher the mass and velocity and the shorter the duration of the impact, the higher the impulse (which is what does most of the damage).
https://en.wikipedia.org/wiki/Impulse_(physics)
On the upside I physically proved that gravity is not a theory that is proven physicsberkeman said:Ouch. Glad that you're okay now. Falls like that are no fun (I work part-time as a medic in addition to my full-time EE work, so I've worked on patients who've done what you did).
I hope you mean the movie.pushcart said:On the upside I physically proved that gravity is not a theory that is proven physics
OK that was funnyfresh_42 said:I hope you mean the movie.
thank you my friend that was the exact calculator I was looking forjim mcnamara said:To save you some effort, try: https://www.omnicalculator.com/physics/free-fall
Thanks. Added.jim mcnamara said:To save you some effort, try: https://www.omnicalculator.com/physics/free-fall
Highest fall I've treated was a 20 y/o female who was dancing on the rooftop of a warehouse in Oakland a couple years ago at a music festival (no, they were not supposed to have climbed on top of the warehouse for a better view of the stage). She was a bit, um, impaired, and managed to fall through a glass skylight 50 feet to the bare concrete floor below. My partner had to scale an 8-foot fence and break a window to get into the warehouse (and let the rest of us in), and we worked on her for about 10 minutes until the ambulance crew could get the gurney through the festival crowd and into us.pushcart said:But I figured hey it's only 33 feet done it 1000 times.
Wow. I'm a bit of a weirdo'cause I was very disappointed I missed the whole ambulance ride and everything because I was out cold, lol. Paramedics, are truly my heroesberkeman said:Highest fall I've treated was a 20 y/o female who was dancing on the rooftop of a warehouse in Oakland a couple years ago at a music festival (no, they were not supposed to have climbed on top of the warehouse for a better view of the stage). She was a bit, um, impaired, and managed to fall through a glass skylight 50 feet to the bare concrete floor below. My partner had to scale a fence and break a window to get into the warehouse (and let the rest of us in), and we worked on her for about 10 minutes until the ambulance crew could get the gurney through the festival crowd and into us.
She had broken ribs, a collapsing lung, in and out of consciousness and a few other less important fractures. She survived, but if my partner hadn't been so quick to get in there and let us in, there's a good chance she would have died because of the lung going down.
(My partner that day is now in the Navy -- she is currently on an aircraft carrier at sea, working as an Air Traffic Controller).
Impulse is a very useful quantity to use in many mechanical interactions but calculating the force from Impulse involves actually knowing the time taken for a collision. I would guess that the better way to approach this sort of question would be in terms of Energy or Work Done in 'absorbing' Kinetic Energy of the falling object. Work done is Force times Distance (in the direction of the Force). To calculate the time involved (working with Impulse), you'd need to have been there at the time, with all sorts of measuring equipment.berkeman said:And as @fresh_42 is alluding to above, the "force" of impact is usually expressed as an "impulse", which is change of momentum (mass X velocity) versus time. The higher the mass and velocity and the shorter the duration of the impact, the higher the impulse (which is what does most of the damage).
The change in momentum from falling speed to zero is equal to the impulse. From there you can calculate the average force of impact using your estimate of the time.pushcart said:So the variable that I don't have, but can estimate is the time it took to change my momentum from falling speed to zero, "impulse".
The force of impact can be calculated using the formula F = m x a, where F is the force, m is the mass, and a is the acceleration due to gravity (9.8 m/s^2). In this case, the mass is the weight of the falling object, and the acceleration due to gravity is constant at 9.8 m/s^2. Therefore, the force of impact can be calculated by multiplying the weight of the object in kilograms by 9.8.
The weight of an object can be calculated using the formula W = m x g, where W is the weight, m is the mass, and g is the acceleration due to gravity (9.8 m/s^2). In this case, the weight of the object in kilograms can be calculated by dividing the force of gravity (9.8 m/s^2) by the acceleration due to gravity (9.8 m/s^2), which equals 1 kilogram.
No, the force of impact will vary depending on the mass of the object. The heavier the object, the greater the force of impact will be when falling 33 feet onto concrete.
The surface of the concrete can affect the force of impact by either absorbing or reflecting some of the force. For example, a softer concrete surface may absorb some of the force, while a harder surface may reflect more force back onto the falling object.
Yes, the force of impact can be reduced by using protective gear such as helmets, padding, or airbags. These can help absorb some of the force and reduce the impact on the body. Additionally, landing in a controlled manner, such as rolling or bending the knees, can also help reduce the force of impact.