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Newton's first law, which dictates that objects will maintain their current states of stillness or motion unless acted upon, affect rockets in two ways.

First, it establishes the need to exert a massive force to get a rocket off the ground: not only to simply get moving but also the overcome the force of gravity being exerted on the rocket while on the ground.

Second, it explains why rockets do not need so much thrust once they do get into space. According to the first law, as long as the rocket doesn't have to alter its speed or direction, it doesn't need to exert any more force. This is why space-bound vessels are calculated on such careful trajectories--to allow for their natural tendencies of motion to carry them to their destinations.

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What is the measure of the pull of gravity on an object called?

Newtons (N) It was first thought of by sir issac newton > The force acts equally on both objects, and is rated in newtons.


What if your body applies force to the ground as weight. If you weigh 450 newtons and carry a backpack that weighs W newtons what is the net force applied downward to the ground?

The net force applied downward to the ground is 450 newtons + W newtons. When standing still (not accelerating), the net force must be zero according to Newton's first law. This means the force pushing down must be balanced by the force pushing up (from the ground).


How many newtons is 73 kilograms?

73 kilograms x 9.8 newtons per kilogram (gravity pulling down on the surface of the earth) = 715.4 newtons +++ You cannot convert units of mass into unit of force. The question is based on a misunderstanding, but as the first answer hints, the force applied by a 73kg mass is 715.4N only on Earth. It will be about 112N on the Moon, roughly.


Which of newtons laws applies to the rock that gets stuck while the plate is subducting into the mantel?

Newton's first law of motion applies in this scenario. The rock that gets stuck while the plate is subducting into the mantle remains at rest until an external force acts upon it, in this case, the force from the movement of the tectonic plate.


How do you convert newtons to mass?

First of all, you should understand that force and mass are quite different things; in many cases it DOESN'T MAKE SENSE to convert one from the other. In the following special case, you can do a conversion: if you assume measurements near the Earth's surface, a mass of 1 kilogram is attracted with a force of 9.8 newtons. So, if you know the weight in newtons, you can divide that by 9.8 to calculate the mass in kilograms.

Related Questions

As newtons first law is the part of newtons second law then why you study newtons first law?

Its a matter of being scientifically rigorous. You can not claim the 2nd law as a law unless you first establish the first law.


How far can a rocket go on a gallon of rocket fuel?

It all depends on the fuels available energy, the mass of the craft, and any force the craft may have to overcome (see Newtons second law of motion). Also, although it'd take a while one could conceivably cross the entire universe on one gallon. As long as nothing counteracts the force of the propellant the craft will never stop (see Newtons first law of motion).


What was the first rocket use for?

The first rockets were used to create colorful and breathtaking displays in the sky,visible by large numbers of people.They were developed in China several Centuries ago, and are still in use. We call them "fireworks".


Does a rocket land with nose first?

a rocket does not have a nose.......


Is newtons first law realistic?

yeah.


Which is the first rocket of India?

The first rocket of India was named Nike Apache, which was launched on November 21, 1963. It was a sounding rocket that was launched from Thumba Equatorial Rocket Launching Station (TERLS) in Thumba, Kerala.


What was the first rocket launched during World War 2?

The first rocket launched as an attack was the V1 rocket, nicknamed "doodlebug


Where was the first rocket used?

China created the first rocket. They are known now as fireworks.


When the first rocket was launch?

the first rocket (the V2) was launched in 1942.


What was the name of the rocket that took the first man to the moon?

The rocket that took the first man to the moon was the Saturn V rocket.


Who built a rocket for war?

the first rocket was made by the Chinese. Of course this the first rocket. They used it to scare their enemies away hope this helps. =]


Where did the rocket boys launch their first rocket?

The Rocket Boys launched their first rocket in the town of Coalwood, West Virginia. The rocket was launched in a field known as Big Creek Missile Agency, which they set up themselves.