Flashcards
PHYS 200 Unit 8: Linear Momentum and Collisions
Flashcards do conjunto (12)
- 1linear momentum-product of system's mess multiplied by its velocity
-p = mv - 2Newton's Second Law and MomentumF_net = Δp/Δt
- 3impulsechange in momentum equals average net external force multiplied by time force acts
- 4impulse formulaΔp = F_net x Δt
- 5isolated system-one for which net external force is 0 (F_net = 0)
-conservation of momentum applies only when net external force is 0 - 6conservation of momentum principle-p_tot = constant
-valid when considering systems of particles - 7elastic collisionconserves internal kinetic energy
- 8inelastic collisionone in which internal kinetic energy changes
- 9conservation of momentum (1D collision)-(m_1)(v_1) + (m_2)(v_2) = (m_1)(v_1') + (m_2)(v_2')
-1/2(m_1)(v_1)^2 + 1/2(m_2)(v_2)^2 = 1/2(m_1)(v_1')^2 + 1/2(m_2)(v_2')^2 - 10conservation of momentum (2D collision)-x-axis:
*(m_1)(v_1) = (m_1)(v_1')cosθ_1 + (m_2)(v_2')cosθ_2
-y-axis:
*0 = (m_1)(v_1')sinθ_1 + (m_2)(v_2')sinθ_2 - 11acceleration of rocketa = (v_e)/m x Δm/Δt - g
- 12final velocity of one-stage rocket initially at restv = v_e ln(m_0/m_r)
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- O usuário eliminou as informações de disciplina FlashCards sobre PHYS 200 Unit 8: Linear Momentum and Collisions, criado por Usuário eliminado em 13-04-2021.
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- Criado por Adriana Vincelli-Joma · 13 abr 2021
- Copiado por Adriana Vincelli-Joma · 13 abr 2021
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