LECTURE DEMONSTRATION MANUAL | Instructional Research Lab : ucla physics
Inertia Ball

M.3.3 Inertia Ball (Jerk and Pull)

A massive ball is suspended by a string with a string below. Using a rod, the demonstrator pulls or jerks down on the lower string. A steady pull always breaks the upper string; a jerk always breaks the lower string.

With a Jerk

Pulling Steadily

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