A Ball Is Thrown at an Upward Angle

question 51

Multiple Choice

A ball is thrown at an upward angle. The horizontal speed of the ball is 20 m/s and the ball covers a distance of 10 m. The maximum height of the arc through which the ball travels is

• A) 1.2 m.
• B) 4.9 m.
• C) 10 m.
• D) It cannot be determined from this information.

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Definitions:

Variance

A measure of the dispersion of a set of data points around their mean; the square of the standard deviation.

Level of Significance

The probability threshold below which the null hypothesis is rejected in hypothesis testing, typically denoted by alpha (α).

Null Hypothesis

A statement that there is no effect or no difference, and it serves as the default or starting assumption in hypothesis testing.

Variance

A measure of the dispersion of a set of data points around their mean value, quantifying how much the data points differ from each other.