Chapt. 2One-Dimensional Kinematics239. Irish sprinters Nuala O’Blarney and Sinead O’Donnybrook both run the 100-meter sprint in10.6 s—which is good, but not world class.a) What are their average velocities?b) Nuala accelerates fromRESTat a constant acceleration for some time period and thenruns the rest of the race at 10.0 m/s in time period 9.3 s. (Recall her total race time was10.6 s.) What was her displacement from the start at the end of her acceleration phase?What was her acceleration in the acceleration phase? What was her final velocity in theacceleration phase? Nuala’s displacement must be continuous as a function of time, buther velocity mayNOTbe.c) Sinead runs her race in two phases too.There is an acceleration phase with constantaccelerationafort1= 1.00 s and then a constant-velocity phase with constant velocityv2for the rest of the way. She starts fromRESTand her velocity as a function of time isCONTINUOUSat all times. Find her constant-acceleration phase acceleration
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