8. A person kicks a ball such that it leaves the ground with an initial velocity of20.0 m/s at an angle of 53.0° above the horizontal. The ball travels 36.0 metershorizontally where it clears a bar that is 3.05 meters above the ground. (a) Bywhat distance does the ball clear the bar? (b) What is the velocity in the y-direction of the ball when directly above the bar?Answers: (a) 0.85 m (b) -13.4 j m/s

Given: velocity v=20 m/s θ=53 distance,d=36 m above ground h=3.05 m

Answered: kicks a ball such t an angle of 53

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kicks a ball such t an angle of 53

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter2: Newtonian Mechanics-single Particle

Section: Chapter Questions

Problem 2.6P: In the blizzard of ’88, a rancher was forced to drop hay bales from an airplane to feed her cattle....

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Question

8. A person kicks a ball such that it leaves the ground with an initial velocity of
20.0 m/s at an angle of 53.0° above the horizontal. The ball travels 36.0 meters
horizontally where it clears a bar that is 3.05 meters above the ground. (a) By
what distance does the ball clear the bar? (b) What is the velocity in the y-
direction of the ball when directly above the bar?
Answers: (a) 0.85 m (b) -13.4 j m/s

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