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# rev5s11 - TA Tomoyuki Nakayama Monday PHY 2048 Physics 1...

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TA: Tomoyuki Nakayama Monday, February 14 2011 PHY 2048: Physics 1 with Calculus, Spring 2011 Review: Chapter 7.1-7.9 The purpose of this review is to refresh your memory. Physics is a cumulative subject, so make it sure you understand basic concepts and typical problem solving techniques in previous chapters before moving on to a new chapter! ________________________________________________________________________________ A. Work & Kinetic Energy A block is sent up a frictionless ramp along which an x axis extends upward. The figure on the right gives the kinetic energy of the block as a function of position x; the scale of the figure’s vertical axis is set by K s = 100 J. If the initial speed of the block is 5.00 m/s, what is the normal force on the block? B. Work Done by Gravitational Force & Spring Force A 0.2 kg block is dropped onto a relaxed vertical spring of spring constant k = 300 N/m. The block sticks to the spring and compresses the spring 0.20 m before it momentarily stops. What is the speed of the block just before it hits the spring?

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TA: Tomoyuki Nakayama Monday, February 14, 2011
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rev5s11 - TA Tomoyuki Nakayama Monday PHY 2048 Physics 1...

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