As you push the vacuum across the floor, the front roller turns one way while the back roller rates in the opposite direction. (idealhome.co.uk)
This method is how you would do a «rolling rate of return» computation. (lendacademy.com)
This function is provided by a new rolling rate sensor in the airbag control unit activating the belt latch tensioners and curtain airbags in an emergency. (topspeed.com)