๐ผ ๐๐๐ง ๐ฉ๐ง๐๐ซ๐๐ก๐จ ๐๐ก๐ค๐ฃ๐ ๐ ๐จ๐ฉ๐ง๐๐๐๐๐ฉ ๐ก๐๐ฃ๐ ๐๐ฉ ๐ ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐ ๐ค๐ 60.0 ๐ข๐/๐ ๐๐ค๐ง ๐ ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ๐ ๐ฉ๐๐๐ฃ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ ๐ฉ๐๐ ๐จ๐๐ข๐ ๐๐๐ง๐๐๐ฉ๐๐ค๐ฃ ๐๐ฉ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐. ๐๐๐ ๐๐ซ๐๐ง๐๐๐ ๐ซ๐๐ก๐ค๐๐๐ฉ๐ฎ ๐๐ค๐ง ๐ฉ๐๐ ๐๐ฃ๐ฉ๐๐ง๐ ๐ฉ๐ง๐๐ฅ ๐๐จ 30.0 ๐ข๐/๐. U๐จ๐ ๐ฉ๐๐๐จ ๐๐ฃ๐๐ค๐ง๐ข๐๐ฉ๐๐ค๐ฃ ๐ฉ๐ค ๐๐ฃ๐จ๐ฌ๐๐ง 21-23 . What is the average speed for the new trip above?
Question
๐ผ ๐๐๐ง ๐ฉ๐ง๐๐ซ๐๐ก๐จ ๐๐ก๐ค๐ฃ๐ ๐ ๐จ๐ฉ๐ง๐๐๐๐๐ฉ ๐ก๐๐ฃ๐ ๐๐ฉ ๐ ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐ ๐ค๐ 60.0 ๐ข๐/๐ ๐๐ค๐ง ๐ ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ๐ ๐ฉ๐๐๐ฃ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ ๐ฉ๐๐ ๐จ๐๐ข๐ ๐๐๐ง๐๐๐ฉ๐๐ค๐ฃ ๐๐ฉ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐. ๐๐๐ ๐๐ซ๐๐ง๐๐๐ ๐ซ๐๐ก๐ค๐๐๐ฉ๐ฎ ๐๐ค๐ง ๐ฉ๐๐ ๐๐ฃ๐ฉ๐๐ง๐ ๐ฉ๐ง๐๐ฅ ๐๐จ 30.0 ๐ข๐/๐. U๐จ๐ ๐ฉ๐๐๐จ ๐๐ฃ๐๐ค๐ง๐ข๐๐ฉ๐๐ค๐ฃ ๐ฉ๐ค ๐๐ฃ๐จ๐ฌ๐๐ง 21-23 . What is the average speed for the new trip above?
Solution
The average speed for the entire trip is given as 30.0 mi/h. This is calculated by dividing the total distance travelled by the total time taken. In this case, the car travels the same distance 'd' twice, once at 60.0 mi/h and once at an unknown speed.
However, since the average speed of the entire trip is 30.0 mi/h, which is half of the speed of the first part of the trip, it suggests that the car spent the same amount of time travelling at 60.0 mi/h as it did at the unknown speed.
Therefore, the speed during the second part of the trip must also be 30.0 mi/h, because the average speed of 30.0 mi/h indicates that the total time spent is evenly split between travelling at 60.0 mi/h and the unknown speed.
So, the average speed for the new trip is 30.0 mi/h.
Similar Questions
๐ผ ๐๐๐ง ๐ฉ๐ง๐๐ซ๐๐ก๐จ ๐๐ก๐ค๐ฃ๐ ๐ ๐จ๐ฉ๐ง๐๐๐๐๐ฉ ๐ก๐๐ฃ๐ ๐๐ฉ ๐ ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐ ๐ค๐ 60.0 ๐ข๐/๐ ๐๐ค๐ง ๐ ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ๐ ๐ฉ๐๐๐ฃ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐๐จ๐ฉ๐๐ฃ๐๐ ๐ ๐๐ฃ ๐ฉ๐๐ ๐จ๐๐ข๐ ๐๐๐ง๐๐๐ฉ๐๐ค๐ฃ ๐๐ฉ ๐๐ฃ๐ค๐ฉ๐๐๐ง ๐๐ค๐ฃ๐จ๐ฉ๐๐ฃ๐ฉ ๐จ๐ฅ๐๐๐. ๐๐๐ ๐๐ซ๐๐ง๐๐๐ ๐ซ๐๐ก๐ค๐๐๐ฉ๐ฎ ๐๐ค๐ง ๐ฉ๐๐ ๐๐ฃ๐ฉ๐๐ง๐ ๐ฉ๐ง๐๐ฅ ๐๐จ 30.0 ๐ข๐/๐. U๐จ๐ ๐ฉ๐๐๐จ ๐๐ฃ๐๐ค๐ง๐ข๐๐ฉ๐๐ค๐ฃ ๐ฉ๐ค ๐๐ฃ๐จ๐ฌ๐๐ง 21-23 21. What is the constant speed with which the car moved during the second distance ๐ฅ?
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