Teaching Physics with the Physics Suite
A 50 gram mass is hanging from a spring whose unstretched length is 10 cm and whose spring constant is 2.5 N/m.
In the list below are described five situations. In some of the situations, the mass is at rest and remains at rest. In other situations, at the instant described, the mass is in the middle of an oscillation initiated by a person pulling the mass downward 5 cm from its equilibrium position and releasing it. Ignore both air resistance and internal damping in the spring.
At the time the situation occurs, indicate whether the force vector requested points up (U), down (D), or has magnitude zero (0).
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Page last modified October 9, 2002: O01