Watch as we take on the ultimate challenge of stopping speeding Lego cars with innovative car stopping technologies! Using a treadmill to simulate high-speed physics, we test various techniques and ...

Dear Abby is written by Abigail Van Buren, also known as Jeanne Phillips, and was founded by her mother, Pauline Phillips.

estimate how the stopping distance ... the work done in bringing a moving vehicle to rest The diagram shows some typical stopping distances for an average car in normal conditions.