A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball

Question

A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.80 s after the ball is released from his hands. What is the speed of the ball, assuming the speed of sound is 340 m????s?

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Trúc Chi 5 years 2021-08-07T09:03:56+00:00 1 Answers 28 views 0

Answers ( )

  1. diemthu
    0
    2021-08-07T09:05:13+00:00
    Reply

    Answer:

    5.997m/s

    Explanation:

    We were told to calculate the speed of the ball,

    Given speed of sound as 340 m

    And we know that the sound of the ball hitting the pins is at 2.80 s after the ball is released from his hands.

    Speed of ball = distance traveled/(time of hearing – time the sound travels).

    Speed= S/t

    Where S= distance traveled

    t= time of hearing – time the sound travels

    time=time for ball to roll+timefor sound to come back.

    time of sound=16.5/340

    =0.048529secs

    solving for speedof ball

    Then,Speed of ball = distance traveled/(time of hearing – time the sound travels).

    =16.5/(2.80-0.048529) m/s = 5.997m/s

    Therefore, the speed of the ball is

    5.997m/s

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