課程名稱︰普通物理甲
課程性質︰必修
課程教師︰黃暉理
開課學院：工學院
開課系所︰工程科學及海洋工程學系
考試日期（年月日）︰99/10/26
考試時限（分鐘）：50
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1. A boy is initially seated on the top of a hemisphere ice mound of radius
R=15.0 m. He begins to slide down the ice, with negligible initial speed.
Approximate the ice as being frictionless. At what height does the boy lose
contact with the ice?
2. A 100g bullet moving directly upward at 2000m/s strikes an passes through
the center of mass of a 10 kg block initially at rest. The bullet emerges
from the block moving directly upward at 500 m/s. To what maximum height does
the block then rise above its initial position?
3. Four particles, each of mass, 1.0 kg, are placed at the vertices of a
square with sides of length 1.0 m. The particles are connected by rods if
negligible mass. This rigid body can rotate in a vertical plane about a
horizontal axis A that passes through one of the particles. The body is
released from rest with rod AB horizontal.
(a) What is the rotational inertia of the body about axis A?
(b) What is the angular speed of the body about axis A when rod AB swings
through the vertical position?
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