Question

16. The barricade at the end of a subway line has a large spring designed to compress 2.00 m when stopping a 1.25 ✕ 10⁵ kg train moving at 0.650 m/s. What speed would the train be going if it only compressed the spring 0.600 m?

Group of answer choices

0.159 m/s

0.221 m/s

0.212 m/s

0.195 m/s

17. You enter an antique classic car road rally with your 1956 Studebaker Golden Hawk. The rally course consists of the following segments: travel north at 23.0 m/s for 30.0 min,then east at 32.0 m/s for 40.0 min, and finally northeast at 30.0 m/s for 50.0 min. For the entire trip, determine the average velocity vector magnitude.

Group of answer choices

26.1 m/s

24.1 m/s

24.4 m/s

26.4 m/s

Answer 1

ANSWER :