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Brock University
Applied Computing
Caroline Starrs

Assignment 1-2 2 1. A ball rolling down a hill at 4.0 m/s accelerates at 2.0 m/s . What is its velocity 5.0 s later? [3A] 2 2. An SUV with an initial velocity of 10 m/s [E] accelerated at 5.0 m/s [E]. How long will it take the SUV to acquire a final velocity of 25 m/s [E]? [3A] 3. A car travelling at 10 m/s accelerates at 4.0 m/s for 8.0 s. What is the distance during this interval? [3A] 4. A golf ball rolls up a steep hill. It is initially travelling at 25 m/s and slows down with an 2 acceleration of -5.0 m/s . Find the displacement after 15 s. [4A] 5. A car accelerating at 5.0 m/s has a distance of 114 m in 6.0 s. What was its velocity at the beginning of the interval? [4A] 6. A ball rolls at an initial velocity of 4.0 m/s up a hill. Five seconds later it is rolling down the hill at 6.0 m/s. Find the following: a. Its acceleration. [3A] b. Its displacement at 5.0 s. [3A] 7. A subway train travelling west at 20 m/s is brought to a rest in 10 s. Find the displacement of the subway train while it is coming to a stop. Assume uniform acceleration. [3A] 8. A helicopter accelerates uniformly from 20 m/s [W] to 50 m/s [E] in 9.0 s. Find the average velocity for the 9.0 s interval. [2T] 9. A diver jumps with an upward vel
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