A Simple Pendulum,2

question 52

Multiple Choice

A simple pendulum,2.6 m in length,is released with a push when the support string is at an angle of 45.0° from the vertical.If the initial speed of the suspended mass is 1.25 m/s when at the release point,what is its speed at the bottom of the swing? (g = 9.8 m/s²)

• A)4.1 m/s.
• B)3.9 m/s
• C)4.1 m/s
• D)16 m/s
• E)7.2 m/s

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Brown V. Board of Education

A landmark United States Supreme Court case in which the Court declared state laws establishing separate public schools for black and white students unconstitutional.