(14%) Problem 6: A football of mass m = 1 kg is thrown at an initial velocity of vo = 19 m/s at an angle of 0 = 31° with respect to the horizontal. The ball reaches a maximum height of h. Let gravitational potential energy be zero at ground level. (a) Give an expression for the initial velocity vector in rectangular form. Write your answer in terms of vo, 0, and the unit vectors i and j. (b) Write an expression for the potential energy, Ug, of the football at the peak of its trajectory, in terms of the variables given in the problem statement. Ug = (m vo Vo sin(0) sin(0) )/2 (c) How high did the ball travel, h, in meters?

(14%) Problem 6: A football of mass m = 1 kg is thrown at an initial velocity of vo = 19 m/s at an angle of 0 = 31° with respect to the horizontal. The ball reaches a maximum height of h. Let gravitational potential energy be zero at ground level. (a) Give an expression for the initial velocity vector in rectangular form. Write your answer in terms of vo, 0, and the unit vectors i and j. (b) Write an expression for the potential energy, Ug, of the football at the peak of its trajectory, in terms of the variables given in the problem statement. Ug = (m vo Vo sin(0) sin(0) )/2 (c) How high did the ball travel, h, in meters?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 59P: In the movie Monty Python and the Holy Grail (https://openstaxcollege. org/l/21monpytmovcl) a cow is...

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