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Unformatted text preview: Sum of Forces = ma [ ] , F net = ma [ ] , Forces ∑ = ma [ ] , F 1 on 2 = − F 2 on 1 [ ] F g = G Mm R 2 , G = 6.7 × 10 − 11 [ ] , j = Δ p = p f − p i [ ] , j = F Δ t [ ] , p = m v [ ] , Δ p ∑ = [ ] Rubric Code: a) The slingshot effect (Gravity Assist) is where a spacecraft uses the gravity of a moving planet to gain momentum. First let’s picture a non-moving planet on the left. The speed of the craft at points a and b remains the same at 40km/s . If we now picture a moving planet, the velocity of the craft in our reference frame is the vector sum v = v c + v P at any point. If the velocity of the planet is 30km/s draw and calculate the total velocity (magnitude and direction) at points a and b. Fall 2010 7B Quiz 7 – Momentum Student ID:________________ Name:________________ , ________________ |______| (last) (first) DL Sec# c) Before the craft dropped into orbit, the velocity in our frame was just it’s initial speed,...
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This note was uploaded on 09/08/2010 for the course PHY 7B PHY7B taught by Professor Cebra during the Winter '10 term at UC Davis.
- Winter '10