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`a = (V_2 - V_1)/(t_2-t_1)`

Enter a value for all fields

The **Two Observation Mean Acceleration** calculator computes the average acceleration base on two observations of velocities (V_{1} and V_{2}) at two times (t_{1} and t_{2}).

**INSTRUCTIONS:** Choose units and enter the following:

- (
**V**) velocity at t_{1}_{1} - (
**t**) initial time_{1} - (
**V**) velocity at t_{2}_{2} - (
**t**) final time._{2}

**Mean Acceleration (a)**: The calculator returns the acceleration in meters per second squared (m/s^{2}). However, this can be automatically converted to compatible units via the pull-down menu.

The formula for the mean acceleration based on two observations is

a = (V_{2} - V_{1})/(t_{2} - t_{1}) = Δv / Δt

where:

- a is the mean acceleration between the two points
- V
_{1}is the velocity at t_{1} - t
_{1}is the time of the first observation - V
_{2}is the velocity at t_{2} - t
_{2}is the time of the second observation

- Light and Matter(Dr. Benjamin Crowell) Chapter 3.3 Positive and Negative Acceleration.