Question

вода в реке течёт со скоростью 2 м/с относительно берега,а катер движется со скоростью 5 м/с относительно воды какова скорость катера относительно берега при движении катера по течению и против течения​

Answer 1

Ответ:

По течению-7 м/с, против-3м/с

Объяснение:

5+2=7,5-2=3

Answer 2

Calculation of the Boat's Velocity Relative to the Shore

To calculate the velocity of the boat relative to the shore when it is moving with and against the current, we need to consider the velocities of the boat and the current separately and then combine them.

Given: - Velocity of the water current: 2 m/s relative to the shore - Velocity of the boat: 5 m/s relative to the water

When the boat is moving with the current, the velocities of the boat and the current add up. Therefore, the velocity of the boat relative to the shore when moving with the current is:

Velocity of the boat relative to the shore (with current) = Velocity of the boat + Velocity of the current

Substituting the given values:

Velocity of the boat relative to the shore (with current) = 5 m/s + 2 m/s = 7 m/s

When the boat is moving against the current, the velocities of the boat and the current subtract. Therefore, the velocity of the boat relative to the shore when moving against the current is:

Velocity of the boat relative to the shore (against current) = Velocity of the boat - Velocity of the current

Substituting the given values:

Velocity of the boat relative to the shore (against current) = 5 m/s - 2 m/s = 3 m/s

Therefore, the velocity of the boat relative to the shore when moving with the current is 7 m/s, and when moving against the current is 3 m/s.

Please note that these calculations assume that the velocities are constant and do not take into account any other factors that may affect the boat's motion, such as wind or other forces.