A force of 12 N gives an object an acceleration of 4m/s2, The force required to give it an acceleration of 10 ms-2 is
Correct answer: D. 30 N
- A. 15 N
- B. 24 N
- C. 20 N
- D. 30 N
Explanation
To solve this problem, use Newton's Second Law of Motion, F = ma. Initially, determine the object's mass using the given force and acceleration: m = F/a = 12 N / 4 m/s2 = 3 kg. With the mass known, apply the same formula to find the force required for an acceleration of 10 m/s2: F = ma = 3 kg x 10 m/s2 = 30 N. Thus, the correct answer is 30 N. Options A, B, and C are incorrect because they involve miscalculation or misapplication of the formula, leading to incorrect force values.
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