Question

e drthiver of a car a is2.0 muityply10^3 on the highway at 45m/s slams on his break to avoid striking a second car in forunt of him.which had come to rest because of blocking .after the breaks are aplied aconstant friction force of 7.5 multiply 10^3N acts on the car .ignore air resistance.
a)determine the least distance should brakes appliednto avoid a collosion with the other vehicals?
b) if the distance between the vehicles is intially only40.0 m,atwhat speed would the collosion occur?

Answer 1

what the heck does

e drthiver of a car a is2.0 muityply10^3 on the highway

mean?

and that's "brake," not break.
Your punctuation is abominable, too.