Question

Лось может двигаться ускорением 2 м / с2, сколько времени ему потребуется чтобы разогнаться из состояния покоя до скорости 5,4 км / ч?

Answer 1

Ответ:

7,5 с

Объяснение:

a=(v1-v0) /t

54 км/ч = 15 м/с

a=(15-0)/t

2=15/t

t=7,5 с

Answer 2

Calculation of Time Required for Moose to Accelerate

To calculate the time required for a moose to accelerate from a state of rest to a speed of 5.4 km/h, we need to convert the given acceleration from m/s^2 to km/h^2 and then use the formula for calculating time.

Given: - Acceleration (a) = 2 m/s^2 - Final speed (v) = 5.4 km/h

To convert the acceleration from m/s^2 to km/h^2, we can use the following conversion factors: - 1 m = 0.001 km - 1 s = 1/3600 h

Converting the acceleration: - Acceleration (a) = 2 m/s^2 = 2 * 0.001 km/(1/3600 h) = 2 * 0.001 * 3600 km/h^2 = 7.2 km/h^2

Now, we can use the formula for calculating time (t) when acceleration (a) and final speed (v) are known: - t = (v - 0) / a

Substituting the values: - t = (5.4 km/h - 0) / 7.2 km/h^2 = 5.4 km/h / 7.2 km/h^2 = 0.75 h

Therefore, it would take the moose approximately 0.75 hours to accelerate from a state of rest to a speed of 5.4 km/h.

Please note that this calculation assumes a constant acceleration throughout the entire process and does not take into account other factors such as friction or air resistance that may affect the actual time required for the moose to accelerate.