Hewitt P 206 Chapt. 11 problems 5-8,11,14,15,20,31,39,41,55 5.Its center of gravity, center of mass 6.The matter is not evenly distributed 7.In line with.

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Presentation transcript:

Hewitt P 206 Chapt. 11 problems 5-8,11,14,15,20,31,39,41,55 5.Its center of gravity, center of mass 6.The matter is not evenly distributed 7.In line with its center of mass, no torque generated 8.It continues to act as though it never exploded, like all projectiles the center of mass follows a parabolic path (negating air resistance) and accelerates at -9.8 m/s/s 11. Its center of mass is still over its base (it would have probably fallen by now if engineers didn’t stop it’s accelerating rate of lean)

14. This allows their center of mass to pass below the bar 15. Unstable – center of mass is lowered Stable- center of mass is raised Neutral equilibrium- Center of mass does not raise or lower, when a small force is applied. 20. D, A, C, B (says the book) – B,D,A,C (says anderson)(see last page) 31. The pole droops, which lowers the center of gravity of the walker/pole system, sometimes even below the rope 39. The full glass

41. The top bring can overhang a maximum of half a brick length, so that its C of G is at the edge of the middle brick. The combined c of G of the middle brick and the top rick is midway between their individual C of Gs.

55. the center of mass is directly below the base of support (no torque) is generated. This is where the “within” the base comes in. Within can mean directly above or below.