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Question #53169

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Nov 19, 2017

60.72 joules

Explanation:

Kinetic energy of the goose is given by the relation $\frac{1}{2} m v^{2}$ $1/2mv^2$ joules.

WHERE
m is the mass of the goose in kilograms and v is the velocity of the goose in meter/second .

GIVEN:
m=18.9 lb.
1 pound=0.45 kilograms
18.9 lbs = 18.9 x 0.45 kilograms $\Rightarrow$ $=>$ 8.5 kg

v =8.4 miles/ hr
1 mile/hour=0.45 m/s
8.4 miles/hr=8.4 x 0.45 m/s $\Rightarrow$ $=>$ 3.78 m/s

KINETIC ENERGY :

K.E= $\frac{1}{2} \times 8.5 \times {3.78}^{2} \Rightarrow 60.72 J$ $1/2xx8.5 xx3.78^2=>60.72 J$

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