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it is known as impulse
Impulse means the momentum change OS the body
Imp =m(v2-v2)
if divide both sides by time
impulse /time= m (velosity change/time)
= ma
=force
hense impulse = force*time
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∙ 12y ago
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Which exerts greater pressure on the floor standing flat-footed or standing on tiptoe?
on tiptoe, because the force acts over less area
What happens to the distance over which you exert your force?
Nothing particular happens specifically to the distance.
How do action-reaction forces act on to different bodies to produce motion?
When one body exerts a force on another body, the other body exerts an equal and opposite reaction force. Both bodies gain equal and opposite momentum due to the forces. The momentum gained by a body due to the action of a force on it a force is given by the integral of the force with respect to time over the time period that it acts. In less mathematical terms, the momentum gained is dependant on how the strength of the force changed over the time it acted and also how long it acted for. How much the two bodies move as a result is dependant on their respective masses. If a body has momentum, p, and mass, m, then it's velocity, v, due to that momentum is given by v=p/m, so the larger a body's mass, the smaller its velocity for a given momentum and the smaller it's mass, the greater its velocity. If the two bodies have similar masses, they will move in opposite directions with similar speeds; For example, two billiard balls colliding. However if one body has a much larger mass, it will move much less than the smaller body. An example of this would be doing a pushup; You exert a force on the Earth and it exerts an equal and opposite reaction force on you. You both gain the same amount of momentum from the pushup but, because the Earth's mass is so much greater than yours, you move up a noticeable amount while the Earth barely moves down at all.
What force is required to push an 600N object?
The force required to overcome friction = the coefficient of friction x the reactive force (as in, the force the object exerts on the surface you want to move it over). So, you have to know the coefficient of friction, and simply times it by 600 in this case to know the force required. Oddly, once friction has been overcome, the required force drops slightly to keep it moving.
Why on lifting one kilogram of iron or one kilogram of feather irons appears heavier?
The answer is two fold: Real and Psychological. The Real part is explained by the relationship between mass and force. When you lift anything up what you feel is the force it exerts on your system (your hand for example) and not the weight. 1kg or iron exerts more unit force on your hand because its mass is concentrated in smaller area. On the other hand, 1kg of feather has its mass distributed over a wider area and therefore exerts a smaller unit force. It therefore genuinely feels lighter. The psychological bit is that we automatically expect something big to weigh more than and item far smaller than it. Of course it won't be if they are the same weight. Your perception therefore is that if "feels" lighter.
What exerts primary control over sodium levels in the body?
aldosterone
What exerts control over all parts of the body?
The brain and central nervous system
Which of the choices below exerts primary control over sodium levels in the body?
Aldosterone
What does gravitationally mean?
Gravitationally may refer to the type of force exerted on a body of mass, this force the force of gravity. For instance if I were to say that orange (I will say orange to avoid parading all over Newtons work) was gravitationally pulled to the ground I would be saying the force of gravity that the earth exerts on the orange pulled it to the ground.
When Force divided by the area over which the force is exerts pressure?
yes, force divided by area is pressure; its units are pounds per square inch, or newtons per square meter, for example. I you pull on an object with force over an area it is called stress
Which exerts greater pressure on the floor standing flat footed or standing on tiptoe?
on tiptoe, because the force acts over less area
Which exerts greater pressure on the floor- standing flat footed or standing on tiptoe?
on tiptoe, because the force acts over less area
Which exerts greater pressure on the floor standing flat-footed or standing on tiptoe?
on tiptoe, because the force acts over less area
What happens to the distance over which you exert your force?
Nothing particular happens specifically to the distance.
How do action-reaction forces act on to different bodies to produce motion?
When one body exerts a force on another body, the other body exerts an equal and opposite reaction force. Both bodies gain equal and opposite momentum due to the forces. The momentum gained by a body due to the action of a force on it a force is given by the integral of the force with respect to time over the time period that it acts. In less mathematical terms, the momentum gained is dependant on how the strength of the force changed over the time it acted and also how long it acted for. How much the two bodies move as a result is dependant on their respective masses. If a body has momentum, p, and mass, m, then it's velocity, v, due to that momentum is given by v=p/m, so the larger a body's mass, the smaller its velocity for a given momentum and the smaller it's mass, the greater its velocity. If the two bodies have similar masses, they will move in opposite directions with similar speeds; For example, two billiard balls colliding. However if one body has a much larger mass, it will move much less than the smaller body. An example of this would be doing a pushup; You exert a force on the Earth and it exerts an equal and opposite reaction force on you. You both gain the same amount of momentum from the pushup but, because the Earth's mass is so much greater than yours, you move up a noticeable amount while the Earth barely moves down at all.
Happens when force moves an object over a distance?
speed
What is the name for a government that exerts restricted power over the population?
The name for a government that exerts restricted power over the population is a limited government.
