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Hand_Key081

# Hand_Key081 - AﬂWM‘ Key Place an “X” by your...

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Unformatted text preview: AﬂWM‘ Key . Place an “X” by your Recitation: PHYS 172 - Spring 2008 Name (Print): Signature: PUID: At an initial time tFO, planet of mass 1x1027 kg is located at <3x108, -2x108, O> m, and a star of mass 1x1030 kg is located at <2x108, 1x108, 0> m. At this time the velocity of the planet is <2000, -2100, 0> m/s while that of the star is <0, 0, 0> m/s. The planet and star exert a force due to gravity on each other. 1. [8 pts] Make a diagram of the situation described above. Be certain to include a coordinate system with all axes labeled appropriately, a vector representing the velocity of the planet, and a vector representing the force on each object. 1 Wheel: + 5'55? 7_ Ve/ﬂceitly victim ~45” ( We wafers l n H OFDFS‘SIL/ﬁ Elisha! {6:13 ,, It I 3. [7 pts] What isgeun‘irt‘vecvtor in the directiongjﬂthis force on the glgneutmdue t t F “ star? ~.~4_ . ,_ , .. “Kama .v. “wavy 4. [8 pts] Write down the metum update ci e cah [nets coy tv time t=2 s. w - r, ., 39;”, 1" I W 2" >me. , _ _ 7*10 ( (49:32) (9‘94) a> no” " * mum xwa—N ...
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