Question

a hall has the dimensions 10m X 12m X 14m. a fly starting at one corner ends up at a diametrically opposite corner. what is the magnituds of its displacement

Answer 1

diagonal between 10 m & 12 m is
√(10^2 + 12^2) =√(100+144) = √244 = 2√61
now the required dimension is
√[(2√61)^2 + (14)^2 ]
√[244+196]
=√440
2√110
=2× 10.488
=20.976