Determine the average speed of the raft if it has moved 1640 m in 32 minutes. Express the speed in km / h.
| December 29, 2020 | education
Task data: t (duration of raft movement) = 32 min (in SI system t = 1920 s); S (movement of the raft in question) = 1640 m.
The average speed of the raft in question is calculated by the formula: Vav = S / t.
Let’s perform the calculation: Vav = 1640/1920 = 0.854 m / s = 3.075 km / h.
Answer: The raft in question was moving at an average speed of 3.075 km / h.
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