3 years ago

1. Complete the table with the appropriate equivalences

Physics

1 answer:

gayaneshka [121]3 years ago

8 0

Answer:

The different values are in the located in the word document

Explanation:

In the attached document in word, we can find each of the conversion for each one of the quantities.

Download docx

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$\dfrac{1}{2}m(v^2-u^2)=(mg\sin\theta-f)d\\\Rightarrow \dfrac{1}{2}mv^2=mg\sin\theta d-fd\\\Rightarrow fd=mg\sin\theta d-\dfrac{1}{2}mv^2\\\Rightarrow fd=20\times \sin 30^{\circ}\times 150-\dfrac{1}{2}\times \dfrac{20}{9.81}\times 15^2\\\Rightarrow fd=1270.64\ \text{J}$

The work done against friction is $1270.64\ \text{J}$ .

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