A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.150 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum?A man weighing 650 N and a woman weighing 450 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?

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Asked Dec 2, 2019
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A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.150 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum?

A man weighing 650 N and a woman weighing 450 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?

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Expert Answer

Step 1
Past (a)
Cardinal and base bal haue same
kinetic energ
mevmv
mcVe
Mb V
mc v2
Ve
Vb
4'27(0
Ve
889
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Past (a) Cardinal and base bal haue same kinetic energ mevmv mcVe Mb V mc v2 Ve Vb 4'27(0 Ve 889

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Step 2
Ratio ot momentams,
4-21618
Pc
mc e
Ph
mь Vь
Pe
4.2 10 889
0-5289
Pb
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Ratio ot momentams, 4-21618 Pc mc e Ph mь Vь Pe 4.2 10 889 0-5289 Pb

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Step 3
Paret Cb)
Weight of man (
0N
()4
Weisht of
woman
Pm
Cm vJm=mv1u
Vm
O.672
MW
Vw
Mm
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Paret Cb) Weight of man ( 0N ()4 Weisht of woman Pm Cm vJm=mv1u Vm O.672 MW Vw Mm

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