Is one newton equal to the force it takes to move a kilogram one meter in one second?

Answer 1

Both a straight forward and tricky question.

What you need is the equation F = m*a

where F is force, m is mass, and a is acceleration

When an object is said to be moving with a constant velocity its acceleration is zero, however everything on earth feels the force of gravity which causes an acceleration of roughly 9.8m/s^2 downwards. The force due to gravity is

F = 1kg*-9.8m/s^2 = -9.8N

So to lift a 1kg mass with a constant velocity would require a force to counterbalance the force of gravity, thus

F = -Fg = -(-9.8N) = 9.8N

where F is the force you need, and Fg is the force of gravity.

N stands for newtons and is SI unit of force

However, here is the tricky part

Whatever object the 1 kg mass is sitting on is already supplying this amount of force, thus preventing the object from accelerating downwards. If you were to apply exactly 9.8N to the 1 kg mass, it wouldn't actually move, you would simply be doing the work of the table, floor, etc. So to actually get the thing to move you would have to apply a force slightly greater than 9.8N, but once it was moving a force of 9.8N would provide a constant velocity

Answer 2

Basically, you have defined the Newton. Force is the vector product of mass and acceleration. For the purposes of this discussion, we'll just say that F = ma. In the SI system, the unit of mass, m, is the kilogram. Acceleration, a, is defined as the rate of change of velocity, and is expressed in meters per second squared, or m/s2. Since F = ma, the unit of force, F, is the kilogram-meter per second squared, or kg-m/s2, which is known as a Newton, in honor of the great English scientist, Sir Isaac newton. So, it will take one Newton (of force) to accelerate a one-kilogram mass one meter per second squared.

Answer 3

Actually, the amount of energy will be the same regardless of how fast you lift the object (It will always be 9.8 joules, because the gravitational constant is 9.8. E = mgh, where g is 9.8). What will be different is the amount of power. Power is the rate at which energy is put to use. In this case, you want to impart 9.8 joules of energy in one second. This is where the unit of power, the watt comes into play. One watt is one joule per second. Therefore, 9.8 joules in one second is 9.8 Watts of power. For you Calculus Junkies, power is the derivative of Work with respect to time.

Answer 4

One newton equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second.

Answer 5

It would be a force of 1 Newton. The definition of a Newton is the amount of force necessary to accelerate a 1kg object at 1 meter per second squared.

Answer 6

"One meter per second per second" is not a distance - that's an acceleration.The corresponding force is called a newton.

Answer 7

F = ma = 1kg x 1m/s2 = 1kg*m/s2 = 1N

Answer 8

One Newton.