Almost Physics IV - Momentum
Posted: Wed May 14, 2014 4:24 pm
My posts are covering basic physics laws, I hope readers are aware that I am still newbie and that what you read in my post is far away to replace the Marshals, Explorers and Rescue team teaching advises through the organized trips. I discourage readers to keep the content of this posts as a standard when driving as the desert may be an hazardous terrain, the beautiful straight dune that you might see on a drawing maybe completely different in real. So please, what you read is just there for general culture.
Before starting, I would like to thank caprihorse for correcting some mistakes in a previous version of this thread, the corrections are mentioned in the post #2 and the video that he commented is here :http://www.youtube.com/watch?v=JWCXZClR0w0
I modified this thread and removed the mistakes to avoid readers to lose time reading incorrect informations. Thanks for your understanding.
Momentum is the product of the mass and velocity of an object.
Momentum= mass . velocity
As the momentum is the product of mass and velocity the international unit is (kg* m/s)
For example, a Hummer H2 (3000 kg mass) on a fast pace, has a large momentum compared to a Suzuki Vitara (1330 Kg) at the same speed.
So if we give an equal break power on both vehicle, it will take more distance to the H2 to stop than the Vitara.
Now if we take two Suzuki Vitara, one is running faster than the other. The faster one would have more momentum. And as result it would take longer time and distance for the faster car to slowdown.
So how momentum is useful on sand track?
As we see the more momentum we have the more distance it takes to stop a vehicle, we use this benefit to avoid us getting stacked on a sand track in some situations. When slowing down or losing the engine power, our vehicle would stay in motion for a short time, we can therefore accelerate again without need to stop.
Momentum is useful when crossing the dune crest. If you reach the top of the dune and your vehicle is almost horizontal, the momentum will help you to pass the crest depending on your arrival speed, in other word to bring the crest edge closer to your rear tires without the need of your engine power.
Momentum in other words means that your car velocity is non-null. So we use it often at each drive as synonym meaning keep moving and don’t stop.
I hope this gives you a better overview about momentum. I will be discussing in the next chapter briefly “Pressure” before moving to the key point in desert drive which is Energy and Law of conservation of energy.
Any clarification or correction are most welcome.
Thank you for reading this thread,
Regards,
Momo
Before starting, I would like to thank caprihorse for correcting some mistakes in a previous version of this thread, the corrections are mentioned in the post #2 and the video that he commented is here :http://www.youtube.com/watch?v=JWCXZClR0w0
I modified this thread and removed the mistakes to avoid readers to lose time reading incorrect informations. Thanks for your understanding.
Momentum is the product of the mass and velocity of an object.
Momentum= mass . velocity
As the momentum is the product of mass and velocity the international unit is (kg* m/s)
For example, a Hummer H2 (3000 kg mass) on a fast pace, has a large momentum compared to a Suzuki Vitara (1330 Kg) at the same speed.
So if we give an equal break power on both vehicle, it will take more distance to the H2 to stop than the Vitara.
Now if we take two Suzuki Vitara, one is running faster than the other. The faster one would have more momentum. And as result it would take longer time and distance for the faster car to slowdown.
So how momentum is useful on sand track?
As we see the more momentum we have the more distance it takes to stop a vehicle, we use this benefit to avoid us getting stacked on a sand track in some situations. When slowing down or losing the engine power, our vehicle would stay in motion for a short time, we can therefore accelerate again without need to stop.
Momentum is useful when crossing the dune crest. If you reach the top of the dune and your vehicle is almost horizontal, the momentum will help you to pass the crest depending on your arrival speed, in other word to bring the crest edge closer to your rear tires without the need of your engine power.
Momentum in other words means that your car velocity is non-null. So we use it often at each drive as synonym meaning keep moving and don’t stop.
I hope this gives you a better overview about momentum. I will be discussing in the next chapter briefly “Pressure” before moving to the key point in desert drive which is Energy and Law of conservation of energy.
Any clarification or correction are most welcome.
Thank you for reading this thread,
Regards,
Momo