1. What is Initial Velocity?

Initial velocity (u) is the velocity of an object at the start of a time interval. It's a fundamental concept in kinematics that helps describe an object's motion under constant acceleration.

2. How Does the Calculator Work?

The calculator uses the kinematic equation:

Where:

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

Explanation: This equation calculates the starting velocity when you know the final velocity, constant acceleration, and time interval.

3. Importance of Initial Velocity Calculation

Details: Calculating initial velocity is essential in physics problems involving motion, helping to predict object trajectories, collision outcomes, and various engineering applications.

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: What if acceleration is negative?
A: Negative acceleration indicates deceleration. The formula still applies correctly with negative values.

Q2: Can this formula be used for non-constant acceleration?
A: No, this formula only applies when acceleration is constant throughout the time interval.

Q3: What are typical units for these measurements?
A: Velocity is typically measured in m/s or km/h, acceleration in m/s², and time in seconds.

Q4: How does initial velocity relate to displacement?
A: Initial velocity is one component used in displacement equations like s = ut + ½at².

Q5: What if I get a negative initial velocity?
A: A negative result indicates motion in the opposite direction of your defined positive direction.