A 02-Kg Stone Is Attached to a String and Swung in in a Circle

question 1

Multiple Choice

A 0.2-kg stone is attached to a string and swung in a circle of radius 0.6 m on a horizontal and frictionless surface.If the stone makes 150 revolutions per minute, the tension force of the string on the stone is:

• A)0.03 N
• B)0.2 N
• C)0.75 N
• D)1.96 N
• E)30 N

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Definitions:

Research Hypothesis

A proposed explanation or prediction about a relationship that can be tested through study and experimentation.

Null Hypothesis

A statistical hypothesis that assumes no significant difference exists in a particular condition or feature between two or more sets of data.

Supported

The state or condition of being backed up with evidence or data, making an assertion more robust or credible.

Reject

In statistics, to conclude that there is enough evidence to discard the null hypothesis in favor of the alternative hypothesis.