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PHYS.1410 Final: PHYS 141 Lowell PreFinalF2010

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turquoisegnu128
15 Feb 2019
School
UMass Lowell
Department
Physics & Applied Physics
Course
PHYS.1410
Professor
All

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Document Summary

Problem 1: a cannonball is shot from cannon at the edge of a cliff (h=100), as shown in the figure below. The cannonball is shot at an angle =30 . Use the coordinate system shown for this problem. y (0,0) x h (a) the cannonball reaches a maximum height of y=30m. What is the y-component of the initial velocity? yov =_______________ (b) what is the x-component of the cannonball"s initial velocity? xov =_______________ 1 (c) how long does it take for the cannon ball to get to its maximum height? (d) where does the cannonball land? t =_______________ Problem 2 (25 points): a mass (m=3kg) is attached to a weightless cord of length l=2m is spun in a circular path. 3: (10 pts) what is the tangential velocity of the mass, (5pts) how long does it take the mass to make one full rotation? vtan=_______________

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Physics: Principles with Applications
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