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##\hat i## , ##\hat j## , ##\hat k## are the unit vectors in the directions x, y, z.alijan kk said:
The scientific definition of work is the product of the force applied to an object and the distance it moves in the direction of that force. In other words, work is done when a force is exerted on an object and the object moves in the same direction as the force.
Work is measured in units of joules (J) in the International System of Units (SI). One joule is equal to the amount of work done when a force of one newton (N) is applied to an object and it moves one meter in the direction of the force.
The formula for calculating work is W = F x d, where W represents work, F represents force, and d represents distance. This formula can also be written as W = Fd cosθ, where θ is the angle between the force and the direction of motion.
Yes, work can be negative. This occurs when the force and the direction of motion are in opposite directions. In this case, the work done on the object is considered to be negative.
The amount of work done on an object is directly related to the change in energy of the system. If work is done on an object, its energy will increase. If work is done by an object, its energy will decrease.
