Understanding the Concepts

* Force (F): The push or pull on an object (measured in Newtons, N).

* Mass (m): The amount of matter in an object (measured in kilograms, kg).

* Acceleration (a): The rate of change of velocity (measured in meters per second squared, m/s²).

Newton's Second Law of Motion

Newton's Second Law of Motion states: F = ma

This means that the force acting on an object is equal to the object's mass multiplied by its acceleration.

Calculation

1. Rearrange the formula to solve for acceleration: a = F/m

2. Plug in the given values: a = 215 N / 69 kg

3. Calculate: a ≈ 3.1 m/s²

Answer: The acceleration of the 69 kg object under a 215 N force is approximately 3.1 m/s².