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# Vertical 1D Motion Problem - PowerPoint PPT Presentation

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

BELLWORK!!

• 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?

• 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?

• 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

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

• 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?

• Pg 24 ( 1 -5 )

• Pg 25 – 1 ( graph )

• Pg 30 ( #1 )

• Pg 31 ( 2-5 & 1-2 at bottom )