The body, moving evenly in a straight line, moved 120 km in 2 hours. How far will it travel in 15 minutes moving at the same speed.
| February 26, 2021 | education
Since, by the condition, the body under consideration has a constant velocity, then the equality will be true: S1 / t1 = V (const) = S2 / t2, whence we express: S2 = S1 * t2 / t1.
The values of the variables: S1 – the first movement of the body (S1 = 120 km); t2 – considered movement time (t2 = 15 min = 0.25 h); t1 – the first time of movement (t1 = 2 h).
Calculation: S2 = 120 * 0.25 / 2 = 15 km.
Answer: At a constant speed, the body in question will travel 15 km in 15 minutes.
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