A Large Spring Is Used to Stop the Cars After

question 76

Multiple Choice

A large spring is used to stop the cars after they come down the last hill of a roller coaster.The cars start at rest at the top of the hill and are caught by a mechanism at the instant their velocities at the bottom are zero.Compare the compression of the spring,x_A,for a fully loaded car with that,x_B,for a lightly loaded car when m_A = 2m_B.

• A)x_A = x_B.
• B)x_A = x_B.
• C)x_A = x_B.
• D)x_A = 2 x_B.
• E)x_A = 4 x_B.

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Definitions:

Critical Value

A threshold value used in hypothesis testing that defines the boundary between the region where the null hypothesis is rejected and the region where it is not rejected.

Test Statistic

A value calculated from sample data during hypothesis testing used to decide whether to reject the null hypothesis.

P-value

The probability of obtaining test results at least as extreme as those observed during the test, assuming that the null hypothesis is correct.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis, it's determined by the chosen significance level.