© 2015 Pearson Education, Inc. Section 4.8 Clicker 1 A rocket is propelled forward by ejecting gas at high speed. The forward motion is a consequence of conservation of energy. conservation of momentum. both of the above. neither of the above. © 2015 Pearson Education, Inc.

© 2015 Pearson Education, Inc. Section 4.8 Clicker 1 A rocket is propelled forward by ejecting gas at high speed. The forward motion is a consequence of conservation of energy. conservation of momentum. both of the above. neither of the above. © 2015 Pearson Education, Inc.

Equal mass - Elastic

Equal mass - Inelastic

Equal mass - Explosion

Light cart hits heavy cart - Elastic

Light cart hits heavy cart - Inelastic

Unequal Mass - Explosion

Clicker 2: Rank the inertias of carts A, B, and S from least to greatest. A, B, S B, S, A A=B, S S, A=B S, B, A

Clicker 3: Rank the inertias of carts A, B, and S from least to greatest. A, B, S S, A, B B, S, A S, B, A A, S, B

Rotational Inertia https://www.youtube.com/watch?v=lk_Pwu7nf1U