80. 2.5 rad = 0 rad + w;(10 s) + ((1.5 m/s²)/2(50 m))(10 s)² Wf = W; + ((1.5 m/s²)/(50 m))(10 s) %3D Challenge Problems 81. II In one contest at the county fair, seen in FIGURE CP4.81, a spring-loaded plunger launches a ball at a speed of 3.0 m/s from one corner of a smooth, flat board that is tilted up at a 20° angle. To win, you must make the ball hit a small target at the adjacent corner, 2.50 m away. At what angle 0 should you tilt the ball launcher? 20° vo foanol 20° 15t Launch Target

80. 2.5 rad = 0 rad + w;(10 s) + ((1.5 m/s²)/2(50 m))(10 s)² Wf = W; + ((1.5 m/s²)/(50 m))(10 s) %3D Challenge Problems 81. II In one contest at the county fair, seen in FIGURE CP4.81, a spring-loaded plunger launches a ball at a speed of 3.0 m/s from one corner of a smooth, flat board that is tilted up at a 20° angle. To win, you must make the ball hit a small target at the adjacent corner, 2.50 m away. At what angle 0 should you tilt the ball launcher? 20° vo foanol 20° 15t Launch Target

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 14PQ: As part of a biology field trip, you have taken an equal-arm balance (Fig. P1. 14) to the beach....

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