The Period of an Oscillating Weight on a Spring in an Inertial

question 38

Multiple Choice

The period of an oscillating weight on a spring in an inertial frame of reference is 2.5 s.What would be its speed if it were to move by an observer who measures its period as 3.4 s? (c = 3.00 × 10⁸ m/s)

• A)1.5 × l0⁸ m/s
• B)2.0 × 10⁸ m/s
• C)2.8 × l0⁸ m/s
• D)6.8 × 10⁷ m/s
• E)​1.3 × 10⁸ m/s

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