PHY 1010U Lecture Notes - Lecture 3: Auto Racing, Fermilab, Significant Figures
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Example: a porsche accelerates from a stoplight at 5. 0 m/s2 for 4. 0 seconds, then coasts for 3. 0 more seconds. 1) how far has it traveled during the first 4. 0 s: also how far has it traveled while coasting. a- model: b- vizualize: c- solve d- assess: Example: a stone is thrown at 5. 0 m/s straight up into the air from a location of. A common error is to assume v = 0, as the object hits ground. Not so, just before hitting groud it is definitely moving at maximum speed in free fall. Also, when a particle reverses direction, v = 0. Let"s compare the accelerations involved in some common cases: a (m/s2) 15. 2 free fall common car racing car space shuttle (max. during launch) 29 soccerball struck by foot baseball struck by bat proton in fermilab. Motion down/up a straight frictionless inclined plane is still motion in one dimension.
