Change the chapter
Question
A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in Figure 7.39. Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in altitude.
Question Image
<b>Figure 7.39</b> A toy car moves up a sloped track. (credit: Leszek Leszczynski, Flickr)
Figure 7.39 A toy car moves up a sloped track. (credit: Leszek Leszczynski, Flickr)
Question by OpenStax is licensed under CC BY 4.0.
Final Answer
$0.687 \textrm{ m/s}$
Solution Video

OpenStax College Physics Solution, Chapter 7, Problem 20 (Problems & Exercises) (4:04)

Sign up to view this solution video!

View sample solution

Calculator Screenshots

OpenStax College Physics, Chapter 7, Problem 20 (PE) calculator screenshot 1