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27 Nov 2019
In a women's 100-m race, accelerating uniformly, Laura takes 2.00 sand Healan 3.00 s to attain their maximum speeds, which they eachmaintain for the rest of the race. They cross the finish linesimultaneously, both setting a world record of 10.4 s. (a) What isthe acceleration of each sprinter? (b) What are their respectvemaximum speeds? (c) Which sprinter is ahead at 6.00-s mark, and byhow much? (d) What is the maximum distance by which Helean isbehind Laura, and at what time does that occur?
The correct answers are (a) 5.32 m/seconds squared for Laura and3.75 m/seconds squared for Healan (b) 10.6 m/s for Laura and 11.2m/s for Healan (c) Laura, by 2.63 m (d) 4.47 m at t = 2.84 s
How do I obtain these answers?
In a women's 100-m race, accelerating uniformly, Laura takes 2.00 sand Healan 3.00 s to attain their maximum speeds, which they eachmaintain for the rest of the race. They cross the finish linesimultaneously, both setting a world record of 10.4 s. (a) What isthe acceleration of each sprinter? (b) What are their respectvemaximum speeds? (c) Which sprinter is ahead at 6.00-s mark, and byhow much? (d) What is the maximum distance by which Helean isbehind Laura, and at what time does that occur?
The correct answers are (a) 5.32 m/seconds squared for Laura and3.75 m/seconds squared for Healan (b) 10.6 m/s for Laura and 11.2m/s for Healan (c) Laura, by 2.63 m (d) 4.47 m at t = 2.84 s
How do I obtain these answers?
Irving HeathcoteLv2
17 Sep 2019
