**79. A placekicker is about to kick a field goal. The ball is 26.9 m from the goalpost. The ball is kicked with an initial velocity of 19.8 m/s at an angle 0 above the ground. Between what two angles, 0, and 0,, will the ball clear the 2.74-m-high crossbar? (Hint: The following trigonometric identities may be useful: sec 0 = 1/(cos 0) and sec² 0 = 1 + tan² 0.)

**79. A placekicker is about to kick a field goal. The ball is 26.9 m from the goalpost. The ball is kicked with an initial velocity of 19.8 m/s at an angle 0 above the ground. Between what two angles, 0, and 0,, will the ball clear the 2.74-m-high crossbar? (Hint: The following trigonometric identities may be useful: sec 0 = 1/(cos 0) and sec² 0 = 1 + tan² 0.)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

**79. A placekicker is about to kick a field goal. The ball is 26.9 m from
the goalpost. The ball is kicked with an initial velocity of 19.8 m/s at an
angle 0 above the ground. Between what two angles, 0, and 0,, will the
ball clear the 2.74-m-high crossbar? (Hint: The following trigonometric
identities may be useful: sec 0 = 1/(cos 0) and sec² 0 = 1 + tan² 0.)

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