![Inertia plays a central role in one seat-belt mechanism. The gray part of the drawing applies when the car is at rest or moving at a constant velocity. The colored parts show Inertia plays a central role in one seat-belt mechanism. The gray part of the drawing applies when the car is at rest or moving at a constant velocity. The colored parts show](https://demo.webassign.net/ebooks/cj8demo/cutnell3550/cutnell3550c04/image_n/nw0117-nn.jpg)
Inertia plays a central role in one seat-belt mechanism. The gray part of the drawing applies when the car is at rest or moving at a constant velocity. The colored parts show
![Sensors | Free Full-Text | Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor Sensors | Free Full-Text | Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor](https://pub.mdpi-res.com/sensors/sensors-10-03759/article_deploy/html/images/sensors-10-03759f1-1024.png?1403312377)
Sensors | Free Full-Text | Development of an Emergency Locking Unit for a Belt-In-Seat (BIS) System Using a MEMS Acceleration Sensor
![The Car Seat LadyLocking the Seat Belt (also known as engaging the automatic locking retractor) - The Car Seat Lady The Car Seat LadyLocking the Seat Belt (also known as engaging the automatic locking retractor) - The Car Seat Lady](https://thecarseatlady.com/wp-content/uploads/2017/04/freesliding.001.png)