3 ms·
Likely. It's a bad example to illustrate "relative speeds" (not in the "fast" sense), since it's usually set up terribly any time I read it and ends up being pl
by chmod775 2y ago
Likely. It's a bad example to illustrate "relative speeds" (not in the "fast" sense), since it's usually set up terribly any time I read it and ends up being plain wrong if you forget to squint.
As a driver I'd rather run into another car than a brick wall. No amount of simplified textbook physics is going to convince me otherwise.
On a related school anecdote: A test problem once asked us to calculate the length/angle a ladder would have to be extended from a firefighting vehicle to reach a window, given height of the window and distance of the firefighting vehicle to the house. I had about twenty minutes left and was a bit of a cheeky student, so I explained how I could not answer that question since I did not know the height at which the ladder originates from the vehicle. That got me full points since I had a great teacher.
That said, you have to be a bit of a jackass to intentionally miss the point in either case.
- deleted 2y ago[deleted]