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momentum
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If an object in motion will stay in motion what causes a bullet shot into fall?
its the laws of motion. once a thing like the bullet has lost its force, it will stop moving and slowly go down its the laws of motion. once a thing like the bullet has lost its force, it will stop moving and slowly go down
Would there have to be an Unbalanced force acting on moving object?
There would have to be an unbalanced force put an object in motion but once in motion no force is necessary for it to remain in motion
Why do you need small force to maintain a heavy object in motion?
Inertia is the resistance to change of an object in motion. In other words, an object at rest wants to stay at rest, and an object in motion wants to stay in motion. this is why it might take a person's whole body strength to start pushing a car down the road from a dead stop, but once it is in motion, it may only take one hand to keep it moving. Once you stop pushing the car, it slows and eventually stops because the frictional forces acting against the car's motion are greater than those keeping it moving.
What is inertia and orbital motion?
The natural tendency of an object to not move (if it wasn't moving), or to keep moving (if it was moving). Inertia is the characteristic that a object will want to stay at rest or in motion. You can feel this in a buss when it suddenly moves this is why you get sent backwards.
Why is it more difficult to push a stalled car from rest to keep it in motion once it has started to run?
Force = mass X acceleration. When you start pushing a stationary 'dead weight' you are making it go faster than it was or accelerating it. Once the car is moving at a steady speed, it is no longer being accelerated. The greater the mass or inertia of an object the more it will resist changes in its motion. (See Newton's Laws of Motion.)
What is the law that states an object at rest remains at rest and an object in motion continues moving in a straight line at a constant speed?
That is Newton's First Law of Motion, or Newton's Law of Inertia. What it means that once an object is moving, its inertia will keep it moving until another force stops it. Also, an object at rest will stay at rest, until a force overcomes its inertia.
What fuels space satilites?
Once they are in orbit, no additional fuel is required to keep them moving.
Can an object in motion if no external forces are acting on it?
yes. external forces ALTER an object's motion... but once it starts moving and has no external forces being applied on it, it will go in a straight line with constant velocity (Newton's 1st Law of Motion)
A force is necessary to keep an object in motion?
No, according to Newton's laws of motion, "an object in motion will stay in motion unless acted on by an opposing force." Basically, a force is needed to make an object start moving but the object will move on its own from kinetic energy. In fact once the object is no longer 'accelerating' it is in a new 'inertial state' and may indeed not be considered as 'in motion' by an observer in the same state. i.e. If a space shuttle is at rest with respect to the Space Station, it must then 'accelerate' (deceleration is the same as acceleration in science) to the state of motion of the Earth's surface to land. Anyone at rest on the runway will then also consider the shuttle as 'not moving'. So 'motion' and 'speed', are only ever 'RELATIVE' to a datum which must be specified.
Why does space probe need very little fuel?
In space there is no friction, so once the space craft gets moving it will stay in motion until it runs into something. The lack or resistance (friction) means it doesn't have to keep pushing to continue moving. It only needs enough fuel to get it up to speed then it will continue on by itself.
An athlete can take longer jump if he comes running from a distance behind as compared to that when he jumps suddenly without running explain?
Sir Isaac's first law: An object in motion, tends to stay in motion. If you try and jump from a stopped position you have to exert an enormous amount of energy all at once. According to Newton, if you are already moving then you don't have to exert that burst of energy all at once. If you add that energy all at once when you are already moving then it gets added to the energy of the existing motion.
What is the force that keeps things from moving?
A force that maintains motion is called inertia. This is the same as to what is normally referred to as momentum.
