Home Back

Formula of Average Acceleration

Average Acceleration Formula:

\[ a_{avg} = \frac{v_f - v_i}{t} \]

m/s
m/s
s

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Average Acceleration?

Average acceleration is the rate at which velocity changes over a specific time interval. It measures how quickly an object's speed and/or direction changes during motion.

2. How Does the Calculator Work?

The calculator uses the average acceleration formula:

\[ a_{avg} = \frac{v_f - v_i}{t} \]

Where:

Explanation: This formula calculates the average rate of change of velocity over a given time period. Positive acceleration indicates increasing velocity, while negative acceleration (deceleration) indicates decreasing velocity.

3. Importance of Average Acceleration Calculation

Details: Average acceleration is fundamental in physics for analyzing motion, designing vehicles and safety systems, understanding sports performance, and solving engineering problems involving moving objects.

4. Using the Calculator

Tips: Enter final velocity and initial velocity in meters per second (m/s), and time in seconds (s). Time must be greater than zero. All values can be positive or negative depending on direction.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between average and instantaneous acceleration?
A: Average acceleration measures velocity change over a time interval, while instantaneous acceleration measures velocity change at a specific moment in time.

Q2: Can acceleration be negative?
A: Yes, negative acceleration (deceleration) occurs when an object slows down or changes direction opposite to its motion.

Q3: What units are used for acceleration?
A: The standard SI unit is meters per second squared (m/s²), but other units like km/h² or ft/s² may also be used.

Q4: How does acceleration relate to force?
A: According to Newton's second law (F = ma), acceleration is directly proportional to the net force applied and inversely proportional to the object's mass.

Q5: What is constant acceleration?
A: Constant acceleration occurs when velocity changes by equal amounts in equal time intervals, resulting in a straight-line velocity-time graph.

Formula of Average Acceleration© - All Rights Reserved 2025