Question

Катер, переправляясь через реку шириной 800 м, двигался перпендикулярно течению реки со скоростью 4 м/с в системе отсчета, связанной с водой. На сколько будет снесен катер течением, если скорость течения реки 1,5 м/с?

Answer 1

Катер переправится за  800/4=200сек  За это время  течение снесет катер на  200*1,5=300м

Answer 2

Calculation of the Boat's Drift

To calculate the drift of the boat due to the river's current, we need to consider the velocity of the boat and the velocity of the river's current.

Given: - Width of the river: 800 m - Velocity of the boat: 4 m/s - Velocity of the river's current: 1.5 m/s

To find the drift of the boat, we can use the concept of vector addition. The drift of the boat will be the vector sum of the boat's velocity and the river's current velocity.

Using vector addition, we can calculate the drift as follows:

Drift of the boat = Velocity of the boat + Velocity of the river's current

Substituting the given values:

Drift of the boat = 4 m/s + 1.5 m/s

Calculating the sum:

Drift of the boat = 5.5 m/s

Therefore, the boat will be drifted by the river's current at a speed of 5.5 m/s.

Please note that the direction of the drift will depend on the angle between the boat's velocity and the river's current. Since the question does not provide information about the angle, we have assumed a perpendicular angle for simplicity.