World-class sprinters can accelerate out of the starting blocks with an acceleration that isnearly horizontal and has magnitude 15 m/s.For related problem-solving tips and strategies, you may want to view a Video TutorSolution of Mass and weightPart AHow much horizontal force must a 55 kg sprinter exert on the starting blocks to produce this acceleration?Express your answer with the appropriate units.?Fhorinontal =ValueUnitsSubmitRequest AnswerPart BWhich object exerts the force that propels the sprinter the blocks or the sprinter herself?O The blocksO The sprinter herselfSubmitRequest Answer

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