Question

A ship approaches a cliff and sounded its speaker. If it recieves the sound after 6 seconds. calculate the distance if the speed is 340ms-1​

Answer 1

Answer:

• 1,000 m (rounded to one significant figure)

Explanation:

The equation is:

     $distance\text{ }traveled\text{ }by\text{ }the\text{ }sound=speed\times time$

• speed = 340m/s
• time = 6 seconds (the sound travels the distance back and forth)

      $distance\text{ }traveled\text{ }by\text{ }the\text{ }sound=340m/s\times 6s=2,040m$

Hence, the distance between the ship and the cliff is half the distance traveled by the sound:

• 2,040m / 2 = 1,020 m.

If you round to one significant figure, because the time has just one significant figure, the answer is 1,000m.