Tension Formula:
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Tension in a pulley system is the force transmitted through a rope, string, or cable when it is pulled tight by forces acting from opposite ends. In a simple two-mass pulley system, the tension can be calculated using a specific formula that accounts for both masses and gravity.
The calculator uses the tension formula:
Where:
Explanation: This formula calculates the tension in a frictionless pulley system with two masses connected by a string over a pulley.
Details: Calculating tension is essential for understanding mechanical systems, designing pulley setups, and solving physics problems related to forces and motion.
Tips: Enter both masses in kilograms and the gravitational acceleration (default is 9.8 m/s² for Earth). All values must be positive numbers.
Q1: Does this formula work for all pulley systems?
A: This formula applies specifically to a simple two-mass frictionless pulley system. More complex systems may require different calculations.
Q2: What if the pulley has mass or friction?
A: If the pulley has mass or friction, the calculation becomes more complex and would need to account for rotational inertia and friction coefficients.
Q3: Can I use different units?
A: The calculator uses kilograms for mass and m/s² for gravity, resulting in Newtons for tension. You can convert from other units before entering values.
Q4: What is the standard value for gravity?
A: On Earth's surface, gravity is approximately 9.8 m/s², but this varies slightly by location. The calculator defaults to 9.8 but allows customization.
Q5: What if the masses are equal?
A: If m1 = m2, the tension simplifies to T = m × g, as the system would be in equilibrium with no acceleration.