Singapore physics teacher clearly does not like Justin Bieber...
Justin Bieber is like Marmite - you either love him or hate him.
One physics teacher in Singapore (identity and school unknown) is clearly in the latter camp.
While coming up with notes on the subject of kinematics, the educator in question decided that Newtonian mechanics would be best imparted on young, voracious minds via Bieber bashing and dark humour.
The result? An example problem that pretty much guarantees students sitting up and paying attention that you see in the gallery above.
To summarise, the question wants students to find out how much gravitational potential energy Bieber has while standing at the top of the Empire State Building - before determining the velocity with which the bad boy singer hits the pavement after he is tossed off by "angry music lovers" following a horrible concert.
Such classic material naturally found its way to local humour website SGAG, who uploaded the problem with their own spin:
For the benefit of those of you who don't read mandarin, Bieber's asking: "Why you all so bad one?" To the tune of his smash hit Baby, of course.
Of course, the scenario depicted in the problem can't possibly exist - anyone who calls his or herself a music lover can't possibly be at a Justin Bieber concert, can they? #imjustkidding #plsdunkillme
Source: SGAG Facebook page