Speed/Velocity Formula:
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Definition: This calculator computes velocity (or speed) using the basic physics equation that relates distance and time.
Purpose: It helps students, physicists, and engineers determine how fast an object is moving based on the distance traveled and time taken.
The calculator uses the formula:
Where:
Explanation: Velocity is calculated by dividing the distance an object travels by the time it takes to cover that distance.
Details: Understanding velocity is fundamental in physics, engineering, transportation planning, sports science, and many other fields.
Tips: Enter the distance in meters and time in seconds. Both values must be positive, with time > 0.
Q1: What's the difference between speed and velocity?
A: Speed is scalar (magnitude only), while velocity is vector (magnitude + direction).
Q2: Can I use different units?
A: Yes, but ensure consistent units (e.g., km and hours, or miles and hours) and convert the result appropriately.
Q3: What if I get a negative time value?
A: Time must always be positive. Negative time values are not physically meaningful in this context.
Q4: How accurate is this calculation?
A: It gives average velocity. For instantaneous velocity, calculus (derivatives) is needed.
Q5: What about acceleration?
A: This calculates constant velocity. For changing velocity, use \( v = u + at \) where u is initial velocity and a is acceleration.