Write down the equation that links distance travelled (sss), constant speed (vvv), and time (ttt).
A high-frequency trading server in London sends a data packet via a submarine fiber-optic cable to a server in Tokyo. The total length of the fiber-optic path is 1.98×107 m1.98 \times 10^7\text{ m}1.98×107 m. Infrared signals travel through the glass core of the cable at a constant speed of 2.2×108 m/s2.2 \times 10^8\text{ m/s}2.2×108 m/s. Calculate the time taken, in seconds, for the data packet to travel from London to Tokyo.