A body weighing 2 kg falls in the air with an acceleration of 9.3 m / s2. Determine the force of air resistance.
| March 2, 2021 | education
To find the force of air resistance, we project all the forces onto the vertical axis of the OU: m * a = Fт – Fсopr, from where we express: Fсopr = Fт – m * a = m – g – m * a = m * (g – a).
Constants and variables: m is the mass of the falling body (m = 2 kg); g – acceleration due to gravity (g ≈ 10 m / s2); a – acceleration (a = 9.3 m / s2).
Calculation: Fcopr = m * (g – a) = 2 * (9.8 – 9.3) = 1 N.
Answer: The force of air resistance acting on the falling body is 1 N.
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