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09) Two objects OF Mass 5kg and 8 kg are at rest. F1 and F2 are the forces applied both the respectively. if The speed of both the objects 10 m/s and 20m/s then find the value of F1-f2 |
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Answer» Explanation:First Object: Mass (m₁) = 5 kg Initial Velocity (u₁) = 0 m/s Final velocity (v₂) = 16 m/s time = 5 s We know that, Force = mass * acceleration And acceleration = (v - u) / t. Hence, F₁ = 5 * (16 - 0) / 5 → F₁ = 5 * 16/5 → F₁ = 16 N SECOND Object: Mass (m₂) = 8 kg Initial Velocity (u₂) = 0 m/s Final Velocity (v₂) = 15 m/s Time = 5 s Hence, F₂ = 8 * (15 - 0) / 5 → F₂ = 8 * 15/5 → F₂ = 24 N Additional Information: Force: It is the push or pull of an Object. It is a vector quantity. It is DENOTED by "F". F = ma, where m is the Mass of the Object and a is it's acceleration. It's units are Newtons (N) and dynes (dyn). It depends on mass & acceleration of the object. |
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