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Theory (II. Ski Jumping)II-1Gravitational Force: 5
Normal Force: 2
Air Resistance: 8
II-2Conservation of energy at the Top and the Bottom of the In-Run gives (Take

at the bottom of the in-run)
II-3
During the impact,

and

are related by

Substituting and solving for

gives
II-4By the Pythagorean Theorem,

Substituting the value of

in the equations obtained in II-3 gives

Theory (III. Thomson's Cathode Ray Experiment)III-1Conservation of energy gives
III-2III-2-1: 1
III-2-2: 3
III-3Electric force is balanced with magnetic force on the electron if the electron flew straight.
III-4From III-1 and III-3,

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