Question

One of the largest planes ever to fly, and the largest to fly frequently, is the Ukranian-built Antonov An-124 Ruslan. Its wingspan is 73.2 m and its length is 69.2 m. The GPE associated with the plane at an altitude of 1.45 km is 3.36 x 10⁹ J. What is the plane’s mass? (You must convert from km to m.)

Answer 1

GPE = mgh

3.36 x 10⁹ J = m x 9.8 m/s² x 1.45 x 10³ m

m = 2.36 x 10⁵ kg