Added over 3 years ago | 00:01:01 | 16801 views
A mass hangs from two identical springs. First, the springs are attached in series by a short string between them. The springs are also connected in parallel by two peripheral strings that are initially slack. The center string is cut...
Added 3 years ago | 00:03:18 | 16706 views
A ball rolls down an inclined track and around a vertical circle. All of the ball's initial potential energy is converted into three forms of energy when it reaches the top of the loop: potential energy corresponding to the height of th...
Added over 3 years ago | 00:00:50 | 15577 views
A can is placed on top of a metal sheet on a stool. A broom hits the sheet causing it to fly from underneath the can, while the can remains stationary. The impulse of the net force is made very small by reducing the time over which the...
Added over 3 years ago | 00:01:54 | 15175 views
A block of wood is attached vertically between two strings. When the bottom string is pulled slowly, the top string breaks. When the bottom string is pulled quickly, it itself breaks.
Added 3 years ago | 00:00:50 | 15170 views
A beaker is placed on top of a cloth, on top of a stool. The cloth is pulled quickly from underneath the beaker, while the beaker remains stationary. The impulse of the net force is made very small by reducing the time over which the c...
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