1 Newton is equal to the amount of force required to accelerate an object at a rate of 1 metre per second, every second. One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in direction of the applied force.
1N=1Kgm/s^2
1 N is the force of Earth's gravity on an apple with a mass of about 102 g.
On the Earth's surface, a mass of 1 kg pushes on its support with an average force of 9.8 N.