Question

Скорость ракеты 8 км/с. За сколько секунд она пролетит 240 км; 400 км; 720 ?км

Answer 1

240:8= 30 с пролетит 240км
400:8=50с пролетит 400км
720:8=90с пролетит 720км

Answer 2

Calculation of Rocket Flight Time

To calculate the flight time of a rocket traveling at a speed of 8 km/s, we can use the formula:

Flight Time = Distance / Speed

Let's calculate the flight time for the given distances:

1. For a distance of 240 km: - Flight Time = 240 km / 8 km/s = 30 seconds.

2. For a distance of 400 km: - Flight Time = 400 km / 8 km/s = 50 seconds.

3. For a distance of 720 km: - Flight Time = 720 km / 8 km/s = 90 seconds.

Therefore, the rocket will take 30 seconds to travel 240 km, 50 seconds to travel 400 km, and 90 seconds to travel 720 km at a speed of 8 km/s.