Question

Из двух пунктов расстояние между которыми 30 км навстречу друг другу выехали одновремено в одном напровление мотоциклисты скорость первого 40км ч второго 50км ч.Какое растояние будет между ними через 2 часа?Через какое время второй мотоциклист догонит первого?Найдите расстояние между ними через 6 часов?

Answer 1

50 км/ч-40 км/ч=10 км/ч (скорость, с какой второй догоняет первого)
S=Vt
10 км/ч*2 ч=20 км (нагонит второй)
30 км-20 км=10 км (будет между ними через 2 часа)
t=S:V
30 км:10 км/ч=3 ч (через 3 часа второй догонит первого)
6 ч-3 ч=3 ч (второй будет обгонять первого)
10 км/ч*3 ч=30 км (между ними через 6 часов)
Ответ: через 2 часа между ними будет 10 км, второй догонит первого через 3 часа, через 6 часов между ними будет 30 км

Answer 2

1)50-40=10 (км)- такое расстояние будет через 1 час
2)2×10=20 (км) - такое расстояние будет через 2 часа
3)10×6=60 (км) - такое расстояние будет через 6 часов

Answer 3

Given Information:

- Two motorcycles start simultaneously from two points that are 30 km apart. - The first motorcycle has a speed of 40 km/h. - The second motorcycle has a speed of 50 km/h.

Distance between the motorcycles after 2 hours:

To find the distance between the motorcycles after 2 hours, we can use the formula: distance = speed × time.

For the first motorcycle: - Speed = 40 km/h - Time = 2 hours

Distance traveled by the first motorcycle after 2 hours: distance_1 = speed_1 × time = 40 km/h × 2 hours = 80 km

For the second motorcycle: - Speed = 50 km/h - Time = 2 hours

Distance traveled by the second motorcycle after 2 hours: distance_2 = speed_2 × time = 50 km/h × 2 hours = 100 km

Therefore, the distance between the two motorcycles after 2 hours is the difference between their distances traveled: distance_between = distance_2 - distance_1 = 100 km - 80 km = 20 km.

So, the distance between the two motorcycles after 2 hours is 20 km.

Time taken for the second motorcycle to catch up to the first motorcycle:

To find the time taken for the second motorcycle to catch up to the first motorcycle, we can use the formula: time = distance / relative speed.

The relative speed is the difference between the speeds of the two motorcycles.

Relative speed = speed_2 - speed_1 = 50 km/h - 40 km/h = 10 km/h.

The distance between the two motorcycles is 30 km.

Time taken for the second motorcycle to catch up to the first motorcycle: time_to_catch_up = distance_between / relative speed = 30 km / 10 km/h = 3 hours.

Therefore, the second motorcycle will catch up to the first motorcycle after 3 hours.

Distance between the motorcycles after 6 hours:

To find the distance between the motorcycles after 6 hours, we can use the same formula: distance = speed × time.

For the first motorcycle: - Speed = 40 km/h - Time = 6 hours

Distance traveled by the first motorcycle after 6 hours: distance_1 = speed_1 × time = 40 km/h × 6 hours = 240 km

For the second motorcycle: - Speed = 50 km/h - Time = 6 hours

Distance traveled by the second motorcycle after 6 hours: distance_2 = speed_2 × time = 50 km/h × 6 hours = 300 km

Therefore, the distance between the two motorcycles after 6 hours is the difference between their distances traveled: distance_between = distance_2 - distance_1 = 300 km - 240 km = 60 km.

So, the distance between the two motorcycles after 6 hours is 60 km.