1.   A football player kicks a football with an initial velocity of 25 yards per second at an angle of 77° to the horizontal. What is the hang time, the elapsed time between the moment the ball is kicked and the time it hits the ground?
    A. about 4.4 seconds B. about 4.8 seconds
    C. about 4.2 seconds D. about 4.6 seconds
    Hint

  2.   Find the initial horizontal velocity of a javelin thrown at 70 feet per second at an angle of 55° with the horizontal.
    A. about 50 ft/s B. about 20 ft/s
    C. about 30 ft/s D. about 40 ft/s
    Hint

  3.   Hetu is playing catch with a friend. If Hetu throws the ball at 21.3 m/s, at an angle of 30° with the horizontal, and his friend catches the ball at the same height from which Hetu threw it, how long is it before his friend catches the ball?
    A. 1.41 s B. 2.17 s
    C. 10.65 s D. 0.46 s
    Hint

  4.   Hetu is playing catch with a friend. If Hetu throws the ball at 21.3 m/s, at an angle of 30° with the horizontal, and his friend catches the ball at the same height from which Hetu threw it, how far away is his friend standing?
    A. 40.0 m B. 23.1 m
    C. 46.2 m D. 53.4 m
    Hint

  5.   If a quarterback throws a 30-yard pass to his receiver with an initial velocity of 21 yards per second at an angle of 15 with the horizontal, how long is the ball in the air?
    A. 1.48 s B. 5.52 s
    C. 1.43 s D. 0.68 s
    Hint



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