The unit of weight is the same as the force, which is N (called Newton, in honour of Sir Isaac Newton) or kg ⋅ m/s. This is the weight of the object under the influence of the gravity of the earth (often denoted by W). Here, a can be replaced by g, which gives us: Source: StudySmarter.īy Newton’s second law of motion, we know that: An object with mass m under the gravitational influence of the earth. The acceleration a of an object shall now be replaced by g, which denotes acceleration due to gravity.įigure 1. The magnitude of this force is what we know as the weight of the object. The force exerted by the earth on an object is called the gravitational force (F). Total Internal Reflection in Optical FibreĪll objects are attracted to the earth, and the direction of that force is towards the centre of the earth.Newton’s and Huygens’ Theories of Light.Einstein's Theory of Special Relativity.Centripetal Acceleration and Centripetal Force.Electromagnetic Radiation and Quantum Phenomena.Galileo's Leaning Tower of Pisa Experiment.Mechanical Energy in Simple Harmonic Motion.

Kinetic Energy in Simple Harmonic Motion.

Magnetic Flux and Magnetic Flux Linkage.

Potential Energy and Energy Conservation.

Conservative and Non Conservative Forces.

Gravity formula