PHYS 284 Final Exam Review () Guarantee Pass
PHYS 284 Final Exam Review () Guarantee Pass 1) Which of the following is an example in which you are traveling at constant speed but not at constant velocity? A) rolling freely down a hill in a cart, traveling in a straight line B) driving backward at exactly 50 km/hr C) driving around in a circle at exactly 100 km/hr D) jumping up and down, with a period of exactly 60 hops per minute E) none of the above - CORRECT ANSWER-Answer: C 2) What is the acceleration of gravity of Earth? A) 9.8 m/s2 downward B) 9.8 m/s downward C) 9.8 km/s2 downward D) 9.8 m2/s downward E) 9.8 km/s downward - CORRECT ANSWER-Answer: A 3) If you drop a rock from a great height, about how fast will it be falling after 5 seconds, neglecting air resistance? A) It depends on how heavy it is. B) It depends on what shape it is. C) 10 m/s D) 15 m/s E) 50 m/s - CORRECT ANSWER-Answer: E
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