The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...

The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...

Luke has a height of 5 feet 9 inches and a weight of 150 pounds (1.75 m and 68 kg). There are only two external forces on the Luke-Yoda system: the gravitational force and the force of the ground ...