PHYSICS 1250 Study Guide - Quiz Guide: Hockey Puck, Unit Vector, Normal Force

• School: Ohio State University
• Department: Physics
• Course: PHYSICS 1250
• Professor: All

Document Summary

Start quiz 20 minutes before end of class. 1 meter (m) = 3. 281 feet 1 mile = 5280 feet 1 hour =3600 s |g|=9. 8 m/s2 v=vi+at x-xi=vit+ at2 v2=vi. Problem 1: two 5-n boxes are attached to opposite ends of a spring scale and suspended from pulleys as shown. What is the reading on the scale? a) 0 n. 2+2a(x-xi) x-xi= (vi+v)t: 2. 5 n c) 5 n d) 10 n, 20 n. Problem 2: a few days ago someone hung a large dead fish in an elevator in smith lab. The fish was hanging vertically from a cord in the elevator and the elevator was lowered with acceleration=(-2. 1m/s2) ( is a unit vector in the + vertical direction). If the tension in the cord was 1000n the mass of the fish was: 84kg b) 102 kg c) 130 kg d) 476 kg e)1000 kg.