The speed of the water flow in the river is 1.6 m / s. How far will the raft move in 5 hours.

The speed of the water flow in the river is 1.6 m / s. How far will the raft move in 5 hours. If he goes with the flow? In 40 minutes?

Initial data: V (speed of water flow in the river) = 1.6 m / s.

Variables: time of movement of the raft downstream: t1 = 5 h, t2 = 40 min.

SI system: t1 = 5 h = 5 * 3600 s = 18000 s; t2 = 40 min = 40 * 60 s = 2400 s.

The distance the raft will move can be calculated using the formula:

S = V * t.

Let’s perform the calculations:

S1 = V * t1 = 1.6 * 18000 = 28 800 m = 28.8 km.

S2 = V * t2 = 1.6 * 2400 = 3 840 m = 3.84 km.

Answer: The raft will move 28.8 km and 3.84 km in 5 hours and 40 minutes, respectively.