Express the speed of bodies in meters per second 90 km / h and 36 km / h.
| November 19, 2020 | education
The body’s speed V = 90 km / h means that the body covers 90 km in 1 hour.
Let us find which path the body travels in 1 s.
In 1 km 1000 m, in 1 hour 60 minutes, and in each 1 minute 60 seconds.
90 km = 90,000 m, 1 h = 60 min = 60 * 60 s = 3600 s.
V = 90 km / h = 90,000 m / 3600 s = 25 m / s.
36 km = 36000 m, 1 h = 3600 s.
V = 36 km / h = 36000 m / 3600 s = 10 m / s.
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