HW_6 - P112 Spring 2007 Homework #6 Due: Monday March 5th,...

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P112 Spring 2007 Homework #6 Due: Monday March 5th, 2007 – At lecture Note: all of the material on this homework will be included in Prelim I! Reading: 5.3, 5.4, 5.5, 14.3 Not all concepts will be covered in class – you are responsible for all material in the reading and in the homework problems. Warm-up Exercises: (Answer only will be marked) 1. A small remote-control car with mass 1.60 kg moves at a constant speed of v= 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m. What is the magnitude of the normal force exerted on the car by the walls of the cylinder at a) the bottom of the vertical circle and b) at the top of the vertical circle? 2. A 0.800-kg ball is tied to the end of a string 1.60 m long and swung in a vertical circle. a) During one complete circle, starting anywhere, calculate the total work done on the ball by i) the tension in the string, ii) gravity. b) Repeat part (a) for motion along a semicircle from the lowest to the highest point on the path. Mathematics Exercises: 3 . Let f ( x ) = 1 x 2 " 0.01 ( x " 1) 2 . Plot f(x) for 0<x<1. For what value of x does f(x)=0? Estimation:
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This note was uploaded on 03/27/2008 for the course PHYS 1112 taught by Professor Leclair,a during the Spring '07 term at Cornell University (Engineering School).

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HW_6 - P112 Spring 2007 Homework #6 Due: Monday March 5th,...

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