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Vertical 1D Motion Problem

Vertical 1D Motion Problem. BELLWORK!!. On the Moon. A Moon rock ON THE MOON is thrown upward with velocity of 7 m/s. After 7 s, it has a downward velocity of 4 m/s. What is the acceleration due to gravity on the Moon? How high above the starting point did the rock go before it began to fall?.

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Vertical 1D Motion Problem

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  1. Vertical 1D Motion Problem BELLWORK!!

  2. On the Moon • A Moon rock ON THE MOON is thrown upward with velocity of 7 m/s. After 7 s, it has a downward velocity of 4 m/s. What is the acceleration due to gravity on the Moon? How high above the starting point did the rock go before it began to fall?

  3. On the Moon • A Moon rock is thrown upward with velocity of 7 m/s. After 7 s, it has a downward velocity of 4 m/s. • What is the acceleration due to gravity on the Moon? • How high above the starting point did the rock go before it began to fall?

  4. Given Information • vo = + 7 m/s ( or upwards ) • vf = -4 m/s ( or downwards ) • Time interval of 7 sec ( t = 7 s )

  5. Part A - Choose Appropriate Formula

  6. Part A - Choose Appropriate Formula

  7. Part A - Choose Appropriate Formula

  8. Part A – Substitute Values

  9. Part A – Substitute Values

  10. Part B – Appropriate Formula NOW HAVE ADDITIONAL INFO ( value for g ) • What are you asked to find? • Height of rock ( above initial position ) before rock falls • Any more info from this?

  11. Part B – Appropriate Formula NOW HAVE ADDITIONAL INFO ( value for g ) • What are you asked to find? • Height of rock ( above initial position ) before rock falls • Any more info from this? • Final velocity at top of path is zero

  12. Part B – Appropriate Formula

  13. Part B – Substitute Values

  14. Part B – Solve

  15. Part B – Solve

  16. Part B – Without Sig Figs?

  17. Exam Prep Book • Pg 24 ( 1 -5 ) • Pg 25 – 1 ( graph ) • Pg 30 ( #1 ) • Pg 31 ( 2-5 & 1-2 at bottom )

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