Work Formula:
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Definition: This equation calculates the work done when a force acts on an object over a distance at an angle.
Purpose: It helps physicists and engineers determine the energy transferred by a force.
The equation uses the formula:
Where:
Explanation: Only the component of force in the direction of displacement does work.
Details: Understanding work helps in energy conservation calculations, mechanical system design, and efficiency analysis.
Tips: Enter the force in Newtons, distance in meters, and angle in degrees (0° for parallel, 90° for perpendicular).
Q1: What happens when θ = 90°?
A: When force is perpendicular to displacement (cos90°=0), no work is done.
Q2: What are typical force values?
A: 1 N ≈ weight of 100g object. Human pushing force might be 50-500N.
Q3: What's the difference between work and power?
A: Work is energy transferred; power is the rate of work done (work/time).
Q4: Can work be negative?
A: Yes, when force opposes motion (90° < θ ≤ 180°).
Q5: How does this relate to energy?
A: Work done equals energy transferred (Work-Energy Theorem).