A net force acts on a 8 kg trolley and gives it an acceleration of 5 m/s. What is the size of the net force?
Answer and explanation
Correct answer: A. 40 N
- Step 1: Newton's second law: .
- Step 2: N.
Answer
40 N.
Why not the others: 8/5 N: it divides mass by acceleration. 13 N: it adds the numbers. 400 N: it multiplies by unnecessarily.
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