Question

A room has dimensions 3 mx 4 mx 5 m as shown in the figure. A fly starting from O crawls up to the opposite corner in the xoy plane. From that corner, it flies from there and ends up at the diagonally opposite corner. What is the magnitude of its displacement?​

Answer 1

Answer:

5√2m

Explanation:

figure show the bold line whose length we have too calculate

Using 3d version of Pythagoras

d²=a²+b²+c²

d²=3²+4²+5²

d²=9+16+25

d²=50

d=√50

d=5√2m

Therefore the magnitude of the displacement of the fly is5√2m