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# Quiz7 - (last(first DL Sec c Before the craft dropped into...

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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 [ ] , j = F Δ t [ ] , p = m v [ ] , Δ p = 0 [ ] 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:________________ , ________________ |______|
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Unformatted text preview: (last) (first) DL Sec# c) Before the craft dropped into orbit, the velocity in our frame was just it’s initial speed, v c =40km/s . After it comes back out of orbit, it’s velocity is the same as point b. If the craft’s mass is 2000kg, find the impulse imparted to the craft by the planet. Keep in mind, impulse is a vector and is equal to the vector difference of the momenta! b) If we wanted to model this as a collision, what kind of collision would this be? (hint: Think about energy) Explain in 1 small sentence. v c v c a b V c a b VS V c V P V P =0 a V P V c V P V c...
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