Experiment Mj-02
Force on an Inclined Plane
Description: Two
spring balances and an inclined plane are attached to the blackboard. A mass is
placed on the inclined plane and the tangental force is maintained by attaching
this mass to one of the spring balances with a string. Another string, attaching
the mass to the second spring balance, is tightened as much as it can be without
moving the mass off the plane. The inclined plane is then removed and the measured
forces do not change, showing that the net downward force on the mass at rest
on the inclined plane is equivalent to mg. Carefully chosen spring balance
positions show the validity of different coordinate systems.
A
mass balanced on inclined plane.
The
plane is removed and the tensile force in the strings remains constant.
Materials: Inclined
plane, cart or block, string, 2 spring balances (dial type), masses
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Friday August 15, 2008 8:37 PM
