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Can an object free fall from the stratoshere and achieve a speed greater than Mach 1?
Wiki User
∙ 13y ago
Yes one can reach greater than mach one in free fall from the stratosphere. Acceleration of gravity is about 32 ft. /sec^^2 and barring atmospheric resistance one would reach mach 1 about 34.375 seconds after release after having traveled about 19000 ft. A frenchman named Michel Fournier plans to attempt a mach 1+ jump in late may 2008. He will jump from a weather balloon at about 131,000 ft. and he intends to reach a maximum speed of 1,113 mph before increasing air resistance halts his acceleration and begins slowing him down. The plan is to pass through mach 1 about 37 seconds after jumping. His free fall plan is about 6.5 minutes with a total jump time of 8.5 minutes. If successful he will be the first skydiver to exceed mach 1 and also break the free fall skydiving time record. http://www.legrandsaut.org/index.php?lang=eng These calculations are for a human in free fall, which has a terminal velocity of only about 120 mph in freefall near sea level. This much greater speed is possible because of much less air resistance at high altitude. The impact air pressure felt by him as he falls will be the same as a normal skydiver in free fall from a much lower altitude would feel. A streamlined object dropped from 131,000 ft. could exceed the expected speed of the skydiver considerably because of much less air resistance allowing a greater time for acceleration and a higher terminal velocity. Yes one can reach greater than mach one in free fall from the stratosphere. Acceleration of gravity is about 32 ft. /sec^^2 and barring atmospheric resistance one would reach mach 1 about 34.375 seconds after release after having traveled about 19000 ft. A frenchman named Michel Fournier plans to attempt a mach 1+ jump in late may 2008. He will jump from a weather balloon at about 131,000 ft. and he intends to reach a maximum speed of 1,113 mph before increasing air resistance halts his acceleration and begins slowing him down. The plan is to pass through mach 1 about 37 seconds after jumping. His free fall plan is about 6.5 minutes with a total jump time of 8.5 minutes. If successful he will be the first skydiver to exceed mach 1 and also break the free fall skydiving time record. http://www.legrandsaut.org/index.php?lang=eng These calculations are for a human in free fall, which has a terminal velocity of only about 120 mph in freefall near sea level. This much greater speed is possible because of much less air resistance at high altitude. The impact air pressure felt by him as he falls will be the same as a normal skydiver in free fall from a much lower altitude would feel. A streamlined object dropped from 131,000 ft. could exceed the expected speed of the skydiver considerably because of much less air resistance allowing a greater time for acceleration and a higher terminal velocity.
Wiki User
∙ 13y ago
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Will the mass change at a very high speed compared the speed of light?
Yes. According to the extended theory of relativity, mass will increase as an objects speed increases. The closer the object's speed gets to the speed of light, the greater its mass will be and a greater force will be required to continue to accelerate it.
How does mass turn into infinity at the speed of light?
It doesn't - the object will never achieve the speed of light, since an infinite mass is not possible (it would require infinite energy). This only describes a tendency: as the object gets closer and closer to the speed of light, so, too, will its mass increase more and more, approaching infinity - this means there is no upper limit to the mass as the object approaches the speed of light.
Why does the mass change when the container is not heated to constant mass?
because energy equals mass times speed of velocity squared, if an object has greater energy, that energy can also format into mass, a cold object weighs less than the same object that is hot.
Does the speed of a position time graph of an object gives the speed of the object?
No, but the slope of the graph does.
Which of these would change the direction of an object but not affect the object's speed?
Circular motion would change the direction of an object but would not affect the object's speed.
How does wind speed affect the rate of a cooling object?
The quicker the wind speed is the faster the object will cool that's because of the temperature change is greater when the speed of win is greater.
If the speed of an object doubles the kinetic energy of the object?
At twice the speed, the kinetic energy will be four times greater.
Dose a heavier or lighter object have a greater kinetic energy?
Kinetic energy depends on mass, and speed. Since you can't easily change an object's mass, you would basically change its speed.
When does shockwave produce?
When speed of object become greater than the speed of sound the waves are produce known as Shock waves.
An object launched from Earth must attain a speed of 7900 m per second to achieve a low orbit What happens if the object its maximum speed is less than 7900m per second?
If the object has less speed, then it will fall back to Earth.
A change in a objects speed has a what effect on its kinetic energy than a change in mass?
Doubling the speed. This is because the (non-relativistic) kinetic energy is proportional to the square of the speed.
Will the speed of the object affect the amount of friction between object and the surface?
No. The speed of the object does not affect the amount of friction between an object and the surface. Friction is affected by the types of surfaces in contact, smoother surfaces produce less friction, and the weight of the object moving horizontally affects the resistance relative to the two surfaces in contact. Greater weight causes greater resistance.
Is there a limit to how fast you can go in space if you had unlimited fuel?
Current scientific belief is that the maximum speed any object can achieve is the speed of light.
Does inertia change with speed?
Inertia is a measurement of the amount of energy needed either to start the object moving, or to slow down or stop its movement. This depends upon the mass (weight) of the object, but more particularly its change of speed. The greater the mass (weight) of the object the greater the amount of energy needed to move it and stop it.
Will the mass change at a very high speed compared the speed of light?
Yes. According to the extended theory of relativity, mass will increase as an objects speed increases. The closer the object's speed gets to the speed of light, the greater its mass will be and a greater force will be required to continue to accelerate it.
Can an items velocity ever be greater than it's speed?
The velocity of an object cannot ever be greater than its speed as the two are directly linked. Velocity is very similar to speed except that it also takes direction into consideration.
Why is potential energy greater than kinetic energy?
It isn't so. Potential energy can be greater, or less, for a given object, depending on its position and its speed.
