The car travels the first 2 kilometers of the way in 3 minutes and the next 10 kilometers
| July 22, 2021 | education
The car travels the first 2 kilometers of the way in 3 minutes and the next 10 kilometers in 7 minutes, determine the average speed of the car along the way.
To determine the average speed of the presented car along the entire path, we apply the formula: Vav = (Sн + Sк) / (tн + tк).
Values of variables: Sн – initial path (Sн = 2 km); Sk – the remaining path (Sk = 10 m); tн – the first spent time (tн = 3 min = 1/20 h); tk – the remaining time (tk = 7 min = 7/60 h).
Calculation: Vav = (2 + 10) / (1/20 + 7/60) = 72 km / h.
Answer: The average speed of the presented car was 72 km / h.
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.
