Question

лодка шла по течению 0,8 ч и против 0,3 ч . собственная скорость лодки 3,8 км /ч ,а скорость течения 1,3 км/ч .какой путь прошла лодка за все это время?

Answer 1

3,8+1,3=5,1км/ч- скорость по течению

3,8-1,3=2,5км/ч- скорость против течения

3,8*0,8+2,5*0,3=3,04+0,75=3,79км- прошла лодка

 

 

 

 

Answer 2

Calculation of the Distance Traveled by the Boat

To calculate the distance traveled by the boat, we need to consider the time it spent traveling with the current and against the current, as well as its own speed and the speed of the current.

Given: - Time spent traveling with the current: 0.8 hours - Time spent traveling against the current: 0.3 hours - Speed of the boat: 3.8 km/h - Speed of the current: 1.3 km/h

To calculate the distance traveled with the current, we can use the formula: distance = speed * time. - Distance traveled with the current: 3.8 km/h * 0.8 hours = 3.04 km

To calculate the distance traveled against the current, we can use the same formula: - Distance traveled against the current: 3.8 km/h * 0.3 hours = 1.14 km

Therefore, the total distance traveled by the boat during this time is the sum of the distances traveled with and against the current: - Total distance traveled = 3.04 km + 1.14 km = 4.18 km

So, the boat traveled a total distance of 4.18 km during this time.