0:00:00.000,0:00:01.440
Xin chào.

0:00:01.440,0:00:03.950
Hôm nay chúng ta sẽ học thêm [br]về động lượng.

0:00:03.950,0:00:07.060
Với bài tập đầu tiên, [br]một người trượt băng

0:00:07.060,0:00:08.630
đang ở trên một đường băng.

0:00:08.630,0:00:10.360
Cô ấy đang cầm một quả bóng.

0:00:10.360,0:00:14.740
Qủa bóng này-- tôi sẽ [br]vẽ nó-- nặng

0:00:14.740,0:00:15.990
0,15 kg.

0:00:18.610,0:00:20.580
Cô ấy ném nó.

0:00:20.580,0:00:23.640
Đề bài cho cô ấy ném nó

0:00:23.640,0:00:25.200


0:00:25.200,0:00:27.230


0:00:27.230,0:00:32.790


0:00:32.790,0:00:35.075


0:00:35.075,0:00:38.490


0:00:38.490,0:00:41.510


0:00:41.510,0:00:44.280


0:00:44.280,0:00:48.000


0:00:48.000,0:00:51.200


0:00:51.200,0:00:58.160


0:00:58.160,0:01:03.160


0:01:03.160,0:01:08.560


0:01:08.560,0:01:17.520


0:01:17.520,0:01:20.130


0:01:20.130,0:01:22.990


0:01:22.990,0:01:25.000


0:01:25.000,0:01:28.930


0:01:28.930,0:01:30.230


0:01:30.230,0:01:33.060


0:01:33.060,0:01:36.340


0:01:36.340,0:01:39.600


0:01:39.600,0:01:42.250


0:01:42.250,0:01:44.830


0:01:44.830,0:01:45.900


0:01:45.900,0:01:48.270


0:01:48.270,0:01:51.020


0:01:51.020,0:01:54.940


0:01:54.940,0:01:55.780


0:01:55.780,0:01:57.250


0:01:57.250,0:01:58.960


0:01:58.960,0:02:02.410


0:02:02.410,0:02:05.760


0:02:05.760,0:02:08.289


0:02:08.289,0:02:09.690


0:02:09.690,0:02:11.730


0:02:11.730,0:02:18.060


0:02:18.060,0:02:22.110


0:02:22.110,0:02:23.810


0:02:23.810,0:02:29.800


0:02:29.800,0:02:34.060


0:02:34.060,0:02:37.430


0:02:37.430,0:02:41.560


0:02:41.560,0:02:42.880


0:02:42.880,0:02:44.030


0:02:44.030,0:02:47.730


0:02:47.730,0:02:58.040


0:02:58.040,0:02:59.710


0:02:59.710,0:03:01.930


0:03:01.930,0:03:05.060


0:03:05.060,0:03:08.930


0:03:08.930,0:03:10.020


0:03:10.020,0:03:12.060


0:03:12.060,0:03:14.440


0:03:14.440,0:03:21.550


0:03:21.550,0:03:25.330


0:03:25.330,0:03:28.180


0:03:28.180,0:03:29.040


0:03:29.040,0:03:31.410


0:03:31.410,0:03:34.890


0:03:37.910,0:03:40.640


0:03:40.640,0:03:50.780


0:03:50.780,0:03:56.260


0:03:56.260,0:04:02.350


0:04:02.350,0:04:04.550


0:04:04.550,0:04:05.930


0:04:05.930,0:04:10.000


0:04:10.000,0:04:18.200


0:04:18.200,0:04:20.279


0:04:20.279,0:04:23.480


0:04:23.480,0:04:25.380


0:04:25.380,0:04:29.480


0:04:29.480,0:04:32.660


0:04:32.660,0:04:35.960


0:04:35.960,0:04:39.230


0:04:39.230,0:04:41.480


0:04:41.480,0:04:43.780


0:04:43.780,0:04:48.380


0:04:48.380,0:04:49.695


0:04:49.695,0:04:50.725


0:04:50.725,0:05:01.520


0:05:01.520,0:05:05.370


0:05:05.370,0:05:15.520


0:05:15.520,0:05:16.270


0:05:16.270,0:05:20.370


0:05:20.370,0:05:24.670


0:05:24.670,0:05:28.440


0:05:28.440,0:05:30.530


0:05:30.530,0:05:31.740


0:05:31.740,0:05:34.350


0:05:34.350,0:05:35.790


0:05:35.790,0:05:40.120


0:05:40.120,0:05:44.500


0:05:44.500,0:05:47.740


0:05:47.740,0:05:51.550


0:05:51.550,0:05:54.600


0:05:54.600,0:05:56.760


0:05:56.760,0:05:58.515


0:05:58.515,0:05:59.765