Work Formula:
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Definition: This equation calculates the work done when a force is applied to move an object over a distance at an angle.
Purpose: It helps physicists, engineers, and students determine the mechanical work in various systems.
The equation is:
Where:
Explanation: The work is maximum when force and displacement are in the same direction (θ = 0°) and zero when perpendicular (θ = 90°).
Details: Calculating work helps in understanding energy transfer, mechanical efficiency, and system performance in physics and engineering applications.
Tips: Enter the force in Newtons, distance in meters, and angle in degrees (0-90). All values must be positive.
Q1: What happens when θ = 0°?
A: The work is simply F × d, as cos(0°) = 1, meaning force and displacement are in the same direction.
Q2: What's the unit of work?
A: The SI unit is Joules (J), equivalent to 1 Newton-meter (N·m).
Q3: Can θ be greater than 90°?
A: While mathematically possible, physically it would mean negative work (force opposing motion).
Q4: How is this different from power?
A: Work is energy transfer, while power is the rate of work done (work/time).
Q5: Does this account for friction?
A: No, this calculates ideal work. Actual work would need to consider friction and other forces.