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Unformatted text preview: frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown in the Figure. The initial height of the block is 0.5 m above the lowest part of the slide and the spring constant is 400 N/m. a) What is the speed of the block when it ±rst reaches the horizontal section of the slide? b) How far is the spring compressed? c) The spring sends the block back to the left. How high does the block rise? Problem 4 (5 points) Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50kg ball swings downward and strikes a 4.60kg ball that is at rest, as the Figure shows. a) Find the speed of the 1.50kg ball just before impact; b) Assuming that the collision is perfetly inelastic (two balls stick together), ±nd the speed of the two balls after the collision; c) Find the height from the lowest point that the two ball system will swing up to after the collision, ignoring air resistance....
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This note was uploaded on 01/29/2011 for the course PHYS 6A taught by Professor Mahaashourabdalla during the Spring '07 term at UCLA.
 Spring '07
 MahaAshourAbdalla
 Physics

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