At Target Practice, a Rifle Bullet Is Fired at an Angle

question 72

Short Answer

At target practice, a rifle bullet is fired at an angle of 30° below the horizontal with an initial velocity of 800 m/s from the top of a cliff 80 m high. How far from the base of the cliff does it strike the level ground below if air resistance is negligible?

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Definitions:

Multinomial Proportions

Relative frequencies of outcomes from a multinomial distribution, often used to describe the proportion of outcomes in categorical data.

One-tail Test

A statistical test where the alternative hypothesis specifies a direction of the tested effect.

Z-test

A statistical method employed to ascertain if there's a difference between the means of two populations when the variances are established and the sample size is significant.

Chi-square Goodness-of-fit

A statistical test that measures how well observed sample data fit the expected distribution from a given hypothesis.