A force of 6N acts on a mass of 1kg which acquire velocity of 30ms-1, The times for which the force acts is
Correct answer: C. 5s
- A. 26s
- B. 6s
- C. 5s
- D. 2s
Explanation
To determine the time for which the force acts, we use the equation of motion derived from Newton's second law: F = m × a, where F is the force, m is the mass, and a is the acceleration.First, calculate the acceleration: a = F / m = 6N / 1kg = 6ms-2Now, use the formula for time: time = velocity / acceleration = 30ms-1 / 6ms-2 = 5sTherefore, the force acts for 5 seconds. The other options are incorrect as they result from miscalculations or incorrect assumptions about the force, mass, and velocity relationship.
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