A goose is flying south for the winter at a constant speed. Keep in mind that on

Question

A goose is flying south for the winter at a constant speed. Keep in mind that one mile is 1.61 km , and one pound is 454 g .

Part A

The goose has a mass of 21.0 lb (pounds) and is flying at 8.30 miles/h (miles per hour). What is the kinetic energy of the goose in joules?

Enter your answer numerically in joules.

Hints

A goose is flying south for the winter at a constant speed. Keep in mind that one mile is 1.61 km , and one pound is 454 g .

Part A

The goose has a mass of 21.0 lb (pounds) and is flying at 8.30 miles/h (miles per hour). What is the kinetic energy of the goose in joules?

Enter your answer numerically in joules.

Hints

Explanation / Answer

A)

Apply kinetic energy formula

Ek = 1/2*m*V^2;

m = mass in kg, v velocity in m/s

mass = 21 lb = 21*0.454 kg;= 9.534 kg

V = 8.3 mi/h --> 8.3 * mi /h * 1 h/ 3600 s * 1609 m / mi

V = 3.71043 m/s

E = 1/2*(9.534)(3.71043 ^2)

E = 65.628 J

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