Question

Imagine that a super-highway is constructed that runs along the equator for the entire circumference of the Earth. To celebrate the opening of the highway, 25 million semi trucks line up of the highway and start driving east. Each semi truck (with driver) has a mass of 30,000 kg. Part A If each of the 25 million semi trucks simultaneously drives east and reaches a steady speed of 120 km/hr, what will be the resulting change in the Earth's angular velocity? For this problem, treat the Earth as a uniform solid sphere.

Answer 1