1. What Is The U = V - A T Equation?

The equation u = v - a t calculates the initial velocity of an object when you know its final velocity, acceleration, and the time over which acceleration occurred. This is one of the fundamental equations of motion in physics.

2. How Does The Calculator Work?

The calculator uses the initial velocity equation:

Where:

• \( u \) — Initial velocity (m/s)
• \( v \) — Final velocity (m/s)
• \( a \) — Acceleration (m/s²)
• \( t \) — Time (s)

Explanation: This equation is derived from the basic definition of acceleration as the rate of change of velocity over time.

3. Importance Of Initial Velocity Calculation

Details: Calculating initial velocity is essential in physics problems involving motion, helping to analyze trajectories, collisions, and other dynamic systems.

4. Using The Calculator

Tips: Enter final velocity in m/s, acceleration in m/s², and time in seconds. All values must be valid (time > 0).

5. Frequently Asked Questions (FAQ)

Q1: When is this equation applicable?
A: This equation applies to motion with constant acceleration along a straight line.

Q2: What if acceleration is negative?
A: Negative acceleration indicates deceleration. The equation still works correctly with negative values.

Q3: Can this be used for vertical motion?
A: Yes, for vertical motion under constant gravity, where a = -9.8 m/s² (upward positive convention).

Q4: What are the SI units for this equation?
A: Velocity in meters per second (m/s), acceleration in meters per second squared (m/s²), and time in seconds (s).

Q5: How is this related to other equations of motion?
A: This is one of four standard equations of motion that are interrelated and can be derived from basic definitions of velocity and acceleration.