Question

part 2: the cer of 67 now, write a 67 - word claim, evidence, and reasoning (cer) to explain your answer. count your words carefully! too few or too many - deduction (newton is watching...). claim: state the net force you calculated. evidence: provide math to prove it. use your knowledge about newtons 2nd law and why force = mass * acceleration. reasoning: explain newtons 2nd law and provide additional examples etc. evidence: provide evidence that relates to your claim. reasoning: explain how your evidence relates to your claim. conclusion sentence: restate your claim and conclude your writing. if a net force of 52n acts on a mass of 13kg, what is the acceleration? the mass is 13kg and the force is 52n. newtons 2nd law: f = ma. so a = f/m. a = 52n/13kg = 4m/s². now not 2nd law f = ma? move from obvious, the mass is 13kg and the force is 52n. the acceleration is 4m/s².

Explanation:

Step1: State the claim

The net force calculated using Newton's 2nd law is 7N.

Step2: Provide evidence

We know Newton's 2nd law is \(F = ma\). Given mass \(m = 1.4kg\) and acceleration \(a = 5m/s^{2}\), then \(F=1.4\times5 = 7N\).

Step3: Provide reasoning

Newton's 2nd law states that force is directly proportional to mass and acceleration (\(F = ma\)). By substituting the given mass and acceleration values into the formula, we can prove the claim. Additional examples like if mass is doubled and acceleration is constant, force will also double, show the consistency of the law.

Step4: Conclusion

Based on the evidence and reasoning, our claim that the net - force is 7N using Newton's 2nd law is valid.

Answer:

The claim is that the net force calculated using Newton's 2nd law is 7N. The evidence is that with a mass of 1.4kg and an acceleration of 5m/s², using \(F = ma\) gives \(F=1.4\times5=7N\). The reasoning is that Newton's 2nd law relates force, mass and acceleration as \(F = ma\) and this relationship holds consistently in different scenarios. The conclusion is that the claim is valid.