Question

автомобиль движется с постоянной скоростью 80/ч. сколько километров он преодолеет за 120 мин ? За 30 мин ? За 15 мин ? сможет ли этот автомобиль преодолеть 20 м за 1 сек ? с какой наименьшей скоростью должен двигаться данный автомобиль , чтобы выполнить указоное требование ?

Answer 1

1) 80*2=160(км) через 120 мин

Answer 2

Calculation of Distance Traveled

To calculate the distance traveled by a car moving at a constant speed of 80 km/h, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled for different time intervals:

1. For 120 minutes (2 hours): - Distance = 80 km/h × 2 hours = 160 kilometers.

2. For 30 minutes (0.5 hours): - Distance = 80 km/h × 0.5 hours = 40 kilometers.

3. For 15 minutes (0.25 hours): - Distance = 80 km/h × 0.25 hours = 20 kilometers.

Can the Car Travel 20 Meters in 1 Second?

To determine if the car can travel 20 meters in 1 second, we need to convert the units to match the speed given in km/h.

1 kilometer is equal to 1000 meters, and 1 hour is equal to 3600 seconds. Therefore, we can convert the speed of 80 km/h to meters per second as follows:

80 km/h = (80 × 1000) meters / (1 × 3600) seconds = 22.22 meters/second.

Since the car's speed is 22.22 meters/second, it can indeed travel 20 meters in 1 second.

Minimum Speed to Meet the Requirement

To find the minimum speed at which the car must travel to meet the requirement of traveling 20 meters in 1 second, we can use the formula:

Speed = Distance / Time

Substituting the given values, we have:

Speed = 20 meters / 1 second = 20 meters/second.

Therefore, the car must travel at a minimum speed of 20 meters/second to meet the specified requirement.

Please note that the calculations provided above are based on the given information and assumptions.