File:20200417 Bowling ball motion and release ratio.gif

20200417_Bowling_ball_motion_and_release_ratio.gif ‎(600 × 500 pixels, file size: 3.26 MB, MIME type: image/gif, looped, 64 frames, 1.3 s)

20190105 Bowling ball motion and release ratio — — — PNG file from which the present GIF is derived