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Acceleration Calculator

Calculate acceleration and distance from initial velocity, final velocity, and time.

Acceleration is the rate of change of velocity over time, measured in meters per second squared (m/s²). It is a key concept in Newton's laws of motion and applies to everything from vehicles to roller coasters to spacecraft.

The formula is: a = (v_f - v_i) / t, where v_f is final velocity, v_i is initial velocity, and t is time. The distance covered during uniform acceleration is: d = v_i * t + 0.5 * a * t².

Positive acceleration means speeding up, negative acceleration (deceleration) means slowing down. Earth's gravity provides a constant acceleration of 9.81 m/s². A sports car accelerating from 0 to 100 km/h in 5 seconds experiences about 5.56 m/s² or 0.57 g.

Frequently Asked Questions

What is 1 g of acceleration?
1 g equals 9.81 m/s², the acceleration due to Earth's gravity. Humans can sustain up to about 5 g briefly; fighter pilots experience up to 9 g.
Can acceleration be negative?
Yes. Negative acceleration (deceleration) means the object is slowing down. The direction of acceleration is opposite to the direction of motion.
What is the difference between uniform and non-uniform acceleration?
Uniform acceleration is constant over time (like free fall). Non-uniform acceleration changes with time (like a car accelerating in traffic).
Acceleration Calculator
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