A collision is an event where two or more bodies exert forces on each other for a short time. Collisions can be elastic where both momentum and kinetic energy are conserved or inelastic where momentum is conserved but kinetic energy ...
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Power is the rate at which work is done or energy is transferred over time. It is calculated using the formula Power = Work done / Time taken. The SI unit of power is the watt where one watt equals ...
Gravitational force is the attractive force between two masses due to their mass and distance. It is described by Newton’s law of universal gravitation which states that the force is directly proportional to the product of the masses and inversely ...
Kinetic energy is the energy possessed by an object due to its motion. It is calculated using the formula KE = (1/2) mv² where m is the mass and v is the velocity. Kinetic energy increases with the square of ...
Friction is a force that opposes the relative motion between two surfaces in contact. It arises due to microscopic irregularities and adhesive interactions. There are two main types of friction: static friction which prevents motion and kinetic friction which acts ...