A body with a mass of 400 g, which was at rest under the action of a force F = 8 H
| February 5, 2021 | education
A body with a mass of 400 g, which was at rest under the action of a force F = 8 H, acquired a speed of V = 36 km / h. Find the path that the body passed.
To find the path traveled by the body after the action of a given force, we use the formula (we take into account that there is no initial velocity (state of rest)): S = Vk2 / 2a = Vk ^ 2 / (2 * F / m) = m * Vk ^ 2 / 2F …
Variables: m – body weight (m = 400 g = 0.4 kg); Vк – acquired (final) speed (Vк = 36 km / h = 10 m / s); F – driving force (F = 8 N).
Calculation: S = m * Vk ^ 2 / 2F = 0.4 * 10 ^ 2 / (2 * 8) = 2.5 m.
Answer: Under the action of a force of 8 N, the body was able to travel a distance equal to 2.5 m.
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