War Boxcar
In physics, how do you know the work you are doing?
In the following situations, how to determine if the work is being done or not? 1. a crane lifting a car 2. a tug of war is matched 3. a locomotive pulling a wagon loaded initially at rest
1. an elevator of a car when the car is lifted, its total mechanical energy has been increased by the amount of stored potential energy U = mgh h, the height of the high 2. a tug of war that is even is the work of the winning team, but the opposing team that compensates for draft work. net work is zero when. 3. a locomotive pulling a wagon Obviously charged initially at rest, the train is the storage of kinetic energy when in motion due to the increase in the rate of K = (1 / 2) mv ^ 2 ANSWER
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