Task data: ttot. (duration of braking of the vehicle in question) = 5 s; Stot. (distance traveled) = 60 m.
The average speed of the vehicle in question is determined by the formula: V = Stotal. / ttot.
Let’s calculate: V = 60/4 = 12 m / s.
Answer: The car in question when braking moved at an average speed of 12 m / s.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.