<http://schema.org/url>
<https://www.wyzant.com>
<https://www.wyzant.com/resources/answers/34245/a_bus_is_traveling_at_80feet_per_second_suddenly_the_driver_appies_the_brakes_the_speed_of_the_braking_bus_after_t_seconds_is_given_by_f_80_20t_2>