danilo_rj
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I've got a problem here from Irodov (it is a very well known physics book).
1.121) A body of mass m was slowly hauled up the hill by a force F which at each pont was directed along a tangent to the trajectory. Find the work performed by this force, if the height of the hill is h, the length of its base l, and the coefficient of friction K.
There is picture, but is not necessary 'cause the text of the problem is enough.
Anyway, I didn't understand why the body has no acceleration when it is being hauled by the force F. And why it is said that the body was slowly hauled?
1.121) A body of mass m was slowly hauled up the hill by a force F which at each pont was directed along a tangent to the trajectory. Find the work performed by this force, if the height of the hill is h, the length of its base l, and the coefficient of friction K.
There is picture, but is not necessary 'cause the text of the problem is enough.
Anyway, I didn't understand why the body has no acceleration when it is being hauled by the force F. And why it is said that the body was slowly hauled?