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The amount of work depends on force and displacement, measured in newton meters (Nm) or joules (J). W= Fd Power is the rate at which work is done or energy is transferred Power = Work/ Time
An elastic collision is a collision where two or more objects collide and then separate after the collision. An inelastic collision is a collision in which the objects stick together and have a combined mass with the same velocity.
Work is the transfer of energy when a force moves an object a certain distance. For work to occur, the force and the displacement must be parallel, as indicated by the equation: W= Fd Power is the rate at which work is done or energy is transferred. Power = Work / Time
To quantify how many times a machine multiplies the amount of human effort, a ratio of forces can be calculated called the mechanical advantage. load / effort Ideal mechanical advantage is the mechanical advantage of a machine with no loss of useful work caused by work done against friction. It can be calculated using distances or heights.
Momentum describes an object‘s motion based on mass and velocity. p = mv Conservation of momentum asserts that the total momentum of a group of objects in a system remains constant if no external forces act on them.