Class Management Help HW 4 Begin Date: 6/17/2018 12:00:00 AM - - Due Date: 7/17/

Question

Class Management Help HW 4 Begin Date: 6/17/2018 12:00:00 AM - - Due Date: 7/17/2018 11:59:00 PM End Date: 8/16/2018 11:59:00 PM (25%) Problem 3: A quarterback throws a football with an initial velocity v at an angle above horizontal. Assume the ball leaves the quarterback's hand at ground level and moves without air resistance. All portions of this problem will produce algebraic expressions in terms of v, 0, and g. Let the origin of the Cartesian coordinate system be the ball's initial position ©theexpertta.com > ? 33% Part (a) Write an expression for the magnitude of the football's initial vertical velocity w . Grade Summary Deductions Potential 0% 100% cos(?) sin(c) cos(?) sin(q) cos(8) sin(0) Submissions Attempts remaining: 10 % per attempt) detailed view 0 Submit Hint I give up! Hints: 3% deduction per hint. Hints remaining: 3 Feedback: 3% deduction per feedback 33% Part (b) Find an expression for the magnitude of the football's initial horizontal velocity vOx 33% Part (c) Write an expression for the total time, ,otal, the football is in the air

Explanation / Answer

a) we know, y-component of initial velocity, voy = v*sin(theta)

b) x-component of initial velocity, vox = v*cos(theta)

c) time of flight, T_total = 2*v*sin(theta)/g

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