A baseball infielder, mass 75.0kg, jumps up with velocity 3.00m/s and catches a

Question

A baseball infielder, mass 75.0kg, jumps up with velocity 3.00m/s and catches a 0.150kg baseball moving horizontally at 50.0m/s.Of the following, which is closest to the final momentum of thesystem, infielder, and baseball?     a) 225 kg x m/s b) 228"          " c) 230"           " d) 233"          " e)none A baseball infielder, mass 75.0kg, jumps up with velocity 3.00m/s and catches a 0.150kg baseball moving horizontally at 50.0m/s.Of the following, which is closest to the final momentum of thesystem, infielder, and baseball?     a) 225 kg x m/s b) 228"          " c) 230"           " d) 233"          " e)none

Explanation / Answer

initial momentum=0.15*50 (in the horizontal direction)              =7.5kgm/s     + momentum in the verticaldirection=75*3=225 therefore, resultantmomentum=2252+7.52=225kgm/s By conservation of momentum, initial momentum=finalmomentum=225kgm/s a)225kgm/s is your answer

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