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8a Section 110 Practice Midterm #1 Solutions

# 8a Section 110 Practice Midterm #1 Solutions - =-2 1 sin 2...

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h g a h h + = max Physics 8a Section 110 Practice Midterm #1 Solutions: 1. Choose up as +y: 2. 3. 4. 5. a. b. c. The gas’s momentum changes as it leaves the rocket and this change in momentum corresponds to a force. The equal and opposite force acts on the rocket and propels it. Known: a = 5.00 m/s^2 g = 9.8 m/s^2 h = 2000 m max 2 gh v f = a. -- b. c. θ μ θ cos sin 1 1 g g a - = θ μ θ cos sin 2 2 g g a - = 2 1 2 a a L t - = a.
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Unformatted text preview: =-2 1 sin 2 1 v Lg a.---b. c. = =--4 1 cos cos 1 2 1 1 m m g d t π 2 = a. b.---c. gL m M m v k 2 ⋅ + = gL x m M m x mv F k ave 2 2 ) ( 2 2 2 ⋅ Δ + = Δ = 6. g v x s 2 2 = Δ...
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