Question

Автомобиль двигался со скоростью 10 м/с затем выключил двигатель и начал торможение с ускорением 2 м/с^2. Какой путь пройден автомобилем за 7 с с момента начала торможения?

Answer 1

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Answer 2

Calculation of the Distance Traveled by the Car

To calculate the distance traveled by the car during the deceleration phase, we can use the equation:

distance = initial velocity * time + (1/2) * acceleration * time^2

Given: - Initial velocity (u) = 10 m/s - Acceleration (a) = -2 m/s^2 (negative because it represents deceleration) - Time (t) = 7 s

Plugging in the values into the equation, we get:

distance = 10 * 7 + (1/2) * (-2) * 7^2

Simplifying the equation, we have:

distance = 70 - 49

Therefore, the distance traveled by the car during the deceleration phase is 21 meters.