Getting Dynamic Accel with DMP and MPU 6050

I'm working on a shock detector by using the MPU 6050 and Jeff Rowberg's DMP code with some modifications.

I have already calibrated the sensor with Luis Ródenas' code.

The issue is, I want to get those values as Dynamic Accel and convert them to G-Force. I don't seem to understand what those Real Accel values are (is it in m/s² ?).

Also, i need to measure impact, so, it has to read the magnitude of the impact in each axis everytime the structure gets a hit.

The sensibility was set to 2000 for the gyro and +-16 to the accel in the config files.

Code: // I2C device class (I2Cdev) demonstration Arduino sketch for MPU6050 class // - Pastebin.com

Can someone please help to get this thing to work ? It's have been like 2 weeks trying.