Automotive science has almost banished the M from the A=M/F (acceleration=mass/force) equation. No car as big and heavy as the Mercedes has the right to accelerate this hard.I sent him an email:
Dan,The article on the site is corrected, with a note at the bottom:
I love your column (and your new appearance on The Car Show), and I'm sorry for the nitpick, but in your review of the CLS63 in today's paper you commented on automotive science almost banishing the mass term from the force equation. You had the intuition right, but the equation wrong. It should have been: A = F / M. For the same force, a more massive car accelerates slower, while a lighter car accelerates quicker.
Otherwise, thanks for keeping your reviews funny and informative.
Corrections & AmplificationsYet, no response from Mr. Neil, and no attribution in the Journal. I wonder how many people wrote to him about this.
In physics, acceleration equals force divided by mass. An earlier version of this article incorrectly gave the equation as acceleration=mass/force.