# A body of mass m moves with an acceleration of 3 m / s2. How many times should the resultant force

September 27, 2021 | education

| **A body of mass m moves with an acceleration of 3 m / s2. How many times should the resultant force increase for the body to start moving with an acceleration of 15 m / s2?**

Since the mass of a given body is a constant, the ratio of the acting resultant forces can be calculated by the formula: k = F2 / F1 = a2 / a1.

Variable values: a2 (required acceleration) = 15 m / s2; a1 (initial acceleration) = 3 m / s2.

Calculation: k = a2 / a1 = 15/3 = 5 p.

Answer: To achieve an acceleration of 15 m / s2 for a given body, the resultant force must increase 5 times.

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