{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

hw1 - Foor apartment which happens to show the Fowerpot...

This preview shows pages 1–2. Sign up to view the full content.

Physics 13 — Winter 2008 Homework #1—Due 10:00 PM on Monday, Jan. 14, 2007 PART I: Complete the “p13-Homework 1” assignment at www.webassign.net. This part is submitted electronically. PART II: Complete the following problems. You will be graded in part on the quality of your explanation/presentation. Show your work! Where possible, display your results in algebraic form before plugging in any numbers if required. 1. Consider the three baseballs hit on trajectories A, B, and C below. (a) Rank these baseballs in order of: i. Time until impact ii. Upward component of initial velocity iii. Horizontal component of initial velocity (b) Sketch the vertical position versus time and the acceleration versus time for baseballs A and B. 2. (M&I Problem 2.32) You are a detective investigating why someone was hit on the head by a falling flowerpot. One piece of evidence is a home video taken in a 4th-

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Foor apartment, which happens to show the Fowerpot falling past a tall window. Inspection of individual frames of the video shows that in a span of 6 frames the Fowerpot falls a distance that corresponds to 0.85 of the window height seen in the video (note: standard video runs at a rate of 30 frames per second). You visit the apartment and measure the window to be 2.2 m high. What can you conclude? Under what assupmtions? Give as much detail as you can. 3. (M&I Problem 2.25) In a crash test, a truck with mass 2200 kg traveling at 25 m/s (about 55 mph) smashes head-on into a concrete wall without rebounding. The front end crumples so much that the truck is 0.8 m shorter than before. What is the approximate magnitude of the force exerted on the truck by the wall? Explain your analysis carefully and justify your estimates or assumptions on physical grounds....
View Full Document

{[ snackBarMessage ]}

What students are saying

• 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.

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

• 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.

Dana University of Pennsylvania ‘17, Course Hero Intern

• 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.

Jill Tulane University ‘16, Course Hero Intern