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hw3_3221spring2011

# hw3_3221spring2011 - 1 Phy 3221 Due Homework set 3 You are...

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1 Phy 3221 Due: January 26, 2011 Homework set # 3 You are encouraged and welcome to work together on the homework assignments. But your homework must be in your own handwriting. If you expect credit for your homework, then it is best to make it easily readable. Problem 1: Look at Figure 2-A on p 94. A block of mass m is released from a height h = 5 R above the ground and slides down the frictionless incline shaped as in the ﬁgure. Give your answers in terms of m , g , and R . Assume that the size of the block is much smaller than R . Be certain that the dimensions work out properly. a. What is the force on the block at the bottom of the incline at point A? b. At what speed does the block leave the track? Textbook: Prob. 2-5 Textbook: Prob. 2-9 Textbook: Prob. 2-19 Assume that the object is launched oﬀ the top of a tall tower, where x 0 = y 0 = 0 (for simplicity), and let the initial components of the velocity be v 0 x and v 0 y . Don’t be concerned with the object hitting the ground. Here are some suggestions for this

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hw3_3221spring2011 - 1 Phy 3221 Due Homework set 3 You are...

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