Unit 2 Practice Solutions.pdf

# Unit 2 Practice Solutions.pdf - Unit 2 Practice Solutions 1...

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Unit 2 Practice Solutions 1. 1 2 1 2 sin sin sin sin 3.8 sin 9.8 22.8 g F ma mg ma a g a g m s m s 2. 2 2 2 2 2 0 2 3.8 1.5 2 3.8 1.5 3.4 f i f v v ad m m m s s m v m s m s or 2 2 1 2 2 2 9.8 1.5sin 22.8 3.4 mgh mv v gh m s m s 3. 2 2 55 1.5 9.8 620 T F ma mg m a g m m kg s s N 4. 2 2 2 2 2 2 0 2 2 3.9 2 1.5 4.8 f i i i v v ad v ad v d a m s m s m     sin g F

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5. Apply F=ma to each block For the 5 kg block : F-T=ma For the 3 kg block : T=ma 3 3 1.8 5.4 T m a N kg kg N 6. 2 3 5 1.8 14.4 m F kg kg s N 7.
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