The SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one metre per second per second, and is equivalent to 100,000 dynes.
- ‘Both are units of force, but one pound-force is equal to 4.45 newtons.’
- ‘Timber can usually soften and take about 100 kilograms, 1,000 newtons per square centimetre.’
- ‘The foot pad has an area of about 100 mm and can produce 10 newtons of adhesive force (enough to support two pounds).’
- ‘A newton has a mass unit of kilograms and an acceleration unit of meters squared per second.’
- ‘The prop engine has been replaced with two 1,800-newton thrust rocket engines.’
Early 20th century: named after Sir Issac Newton(see Newton, Sir Isaac).