BibleGateway a Amaron CL &Google; H Netflx You Tube xC Solved Suppose a car trav
ID: 1865566 • Letter: B
Question
BibleGateway a Amaron CL &Google; H Netflx You Tube xC Solved Suppose a car travels 1.. KeepVid Sandboxie Showhypc 3.-2 points OSUniPhys1 7.2 P 043 ?? Notes A 4.5 kg body has two times V4SAG the kinetic energy of a 7.5 kg body. Calculate the ratio of the speeds of these bodies. Additional Materials O eBook . -2 points OSUniPhyst 72WA 016 My Notes The center fielder for the school's baseball team throws a 0.150-kg baseball towards home plate at a s initial angle of 40.09. What is the kinetic energy of the baseball at the highest point of its trajectory? Additional Materials eBook el#1 calcula-el#1,NOL:et @ M Sandbooe.. de ViewSonicExplanation / Answer
1) KE1 = 0.5mv4.5^2
= 0.5*4.5*v4.5^2
KE2 = 0.5*7.5*v7.5^2
KE1/KE2 = (4.5 / 7.5 ) * ( V4.5 / V7.5)^2
( V4.5 / V7.5) = sqrt(2*7.5 / 4.5)
= 1.83
2) velocity at the top = Vo sin 40 = 26.8 sin 40 = 17.22 m/s
KE = 0.5mv^2
= 0.5*0.15*17.22^2
= 22.25 J
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