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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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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?


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?


Given Information

  • vo = + 7 m/s ( or upwards )

  • vf = -4 m/s ( or downwards )

  • Time interval of 7 sec ( t = 7 s )


Part A - Choose Appropriate Formula


Part A - Choose Appropriate Formula


Part A - Choose Appropriate Formula


Part A – Substitute Values


Part A – Substitute Values


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?


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


Part B – Appropriate Formula


Part B – Substitute Values


Part B – Solve


Part B – Solve


Part B – Without Sig Figs?


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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