S05-Momentum

S05-Momentum - 1 Impulse & Momentum 1 ∆t F m vi F...

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Unformatted text preview: 1 Impulse & Momentum 1 ∆t F m vi F m vf ∆t F m vi Impulse & Momentum 2 F m vf Sample Problem 1 F vi m vf m ∆t Sample Problem 2 F vi m ∆t Variable Impact Force v F -v F Fmax Fav t t1 t2 t m = .0200 kg v = 30.0 m/s t2 = .0110 s Fmax = ?N Fmax = 218 N Conservation of Momentum m1 v1 F1 m1 F2 m2 v2 m2 v1’ m1 m2 v2’ Collisions m1 A v1’ v1 v2 m2 v2’ m1 m1 m2 B m2 v12’ C m1 m2 m1 v1 Sample Problem 3 m2 v2 = 0 v2’ v1 = 0 ’ m1 v1 = 5.0 m/s m2 m1 = m2 = m v2’ = ? m/s v2’ = 5.0 m/s m1 v1 Sample Problem 4 m2 v2 = 0 v12’ m1 m1 = m2 = m v1 = 5.0 m/s m2 v12’ = ? m/s v12’ = 2.5 m/s Sample Problem 5 m1 v1’ m2 v2’ m1 m2 v2’ = 5.0 m/s m1 = 2.0 kg m2 = 4.0 kg v1’ = ? m/s v1’ = -10 m/s Momentum as a Vector θ1 2 p1’ θ 1 2 θ p θ 2 p’ p’ = p 2 2 p’ p1’cosθ 1 p ’cos θ p1’sinθ 1 2 2 p ’sin θ v’ 2 Sample Problem 6 p 3 v’ 2 p 1 2 2 P’ v v 1 v 3 p v’ 2 If p > p3, then … If p < p3, then … 5 v If p 1==p6.0then … /s 3, x 10 m 2 m1 = m = m3 = m v’ = 2.0 x 105 m/s Sample Problem 7 v’ 2 p3 p1 3 2 p’ p –p θ p1 m3 = 2 m v v 1 v 3 θ p 2 2 2 3 m1 = m = m [v1] = [v ]= [v ] = v = 3.00 x 105 m/s θ = 4 5o v’ = 1.06 x 105 m/s Astronaut Problem ...
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S05-Momentum - 1 Impulse &amp;amp; Momentum 1 ∆t F m vi F...

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