Question

Автомобиль, трогаясь с места, движется с ускорением 3 м/с в кв. Какой путь он пройдет за третью секунду движения? за четвертую секунду движения?

Answer 1

На 3 секунду - 9 
на 4 - 18

Answer 2

Calculation of Distance Traveled

To calculate the distance traveled by the car in the third and fourth seconds of motion, we need to use the formula for distance traveled with constant acceleration:

Distance (S) = Initial Velocity (v0) * Time (t) + 0.5 * Acceleration (a) * Time (t)^2

Given: - Initial velocity (v0) = 0 m/s (since the car starts from rest) - Acceleration (a) = 3 m/s^2 - Time (t) = 3 seconds (for the third second) and 4 seconds (for the fourth second)

Let's calculate the distances:

For the third second: Distance (S3) = 0 * 3 + 0.5 * 3 * 3^2 For the fourth second: Distance (S4) = 0 * 4 + 0.5 * 3 * 4^2 Now, let's calculate the distances:

For the third second: Distance (S3) = 0 * 3 + 0.5 * 3 * 3^2 = 0 + 0.5 * 3 * 9 = 0 + 13.5 = 13.5 meters

For the fourth second: Distance (S4) = 0 * 4 + 0.5 * 3 * 4^2 = 0 + 0.5 * 3 * 16 = 0 + 24 = 24 meters

Therefore, the car will travel a distance of 13.5 meters in the third second and 24 meters in the fourth second of motion.