Newton's Second Law to Speed Equation:
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This calculator converts force (in newtons) to speed (in m/s) using the equation derived from work-energy principle. It shows how much speed an object of given mass would attain when a constant force is applied over a certain distance.
The calculator uses the following equation:
Where:
Explanation: The equation comes from equating the work done by the force (F × d) with the kinetic energy gained (½mv²).
Details: This calculation is important in physics, engineering, and mechanics to determine how much speed an object will gain when a known force is applied over a certain distance.
Tips: Enter force in newtons (N), distance in meters (m), and mass in kilograms (kg). All values must be positive numbers.
Q1: Does this equation account for friction?
A: No, this is the ideal case without friction or other energy losses. Real-world speeds may be lower due to friction.
Q2: What if the force isn't constant?
A: This equation assumes constant force. For variable forces, integration would be needed.
Q3: Can this be used for rotational motion?
A: No, this is for linear motion. Rotational motion requires different equations involving torque and moment of inertia.
Q4: What are typical values for this calculation?
A: For example, a 10N force applied over 5m to a 2kg object would give v = √(2×10×5/2) = √50 ≈ 7.07 m/s.
Q5: How does this relate to acceleration?
A: This gives the final speed directly without calculating acceleration, though you could also use F=ma and kinematic equations.