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Grade: 11

                        

A football player punts the football so that it will have a "hang time" (time of flight) of 4.50 s and land 50 yd (= 45.7 m) away. If the ball leaves the player's foot 5.0 ft (= 1.52 m) above the ground, what is its initial velocity (magnitude and direction)?

5 years ago

Answers : (1)

Kevin Nash
askIITians Faculty
332 Points
							234-161_1.PNG
Therefore, the horizontal component of initial velocity of the football is 10.2 m/s.
234-1098_1.PNG
Therefore, the vertical component of initial velocity of the football is 22.1 m/s.
234-1360_1.PNG
Therefore the magnitude of initial velocity of the football is 24.3 m/s.

234-747_1.PNG
Therefore, the angle between the initial velocity vector of football and the horizontal is 65.2°.
5 years ago
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