Example problem — Projectile motion

When I wrote how I plan to make exam questions un-googleable, what I probably should have said was less googleable. Let’s go with that instead.

Let’s try an example of a problem that is “less googleable”. Here’s what I want to start with:

Problem: Lisa throws a stone horizontally from the roof edge of a 50.0 meter high dormitory. It hits the ground at a point 60.0 m from the building. Find the time of flight.

This problem is actually quite googleable, and I’m quite certain the solution and answer are all over the…