07_InstSolManual_PDF_Part26 - specify how far the sled...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
7.111. Set Up: Use conservation of energy to find the speed of the sled at the edge of the cliff. Let so gives or Then analyze the projectile motion of the sled: use the vertical component of motion to find the time t that the sled is in the air; then use the horizontal component of the motion with to find the horizontal displacement. Solve: Reflect: Conservation of energy can be used to find the speed of the sled at any point of the motion but does not
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: specify how far the sled travels while it is in the air. x f 5 v i, x t 5 1 17.1 m / s 21 1.50 s 2 5 25.6 m x f 5 v i, x t 1 1 2 a x t 2 : t 5 Å 2 y f a y 5 Å 2 1 2 11.0 m 2 2 9.80 m / s 2 5 1.50 s y f 5 v i, y t 1 1 2 a y t 2 : v f 5 "1 22.5 m / s 2 2 2 2 1 9.80 m / s 2 21 11.0 m 2 5 17.1 m / s a x 5 v f 5 " v i 2 2 2 gh . 1 2 m v f 2 1 mgh 5 1 2 m v i 2 K f 1 U f 5 K i 1 U i y f 5 h 5 11.0 m. y i 5 7-26 Chapter 7...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern