Engineering Board Exam Reviewer · Engineering Mechanics · easy
A net force acts on a 20 kg object, giving it an acceleration of 4.5 m/s2. What is the magnitude of the net force?
- 4.44
- 24.5
- 45
- 90
Answer
D. 90
Solution
Using Newton's second law: F = ma = 20 × 4.5 = 90 N.
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