Afarmer tosses a rope over a beam at the top of a barn. he ties one end of the rope to a bale of hay. he then raises the bale up to the barn loft by pulling down on the loose end of the rope. why does the input force have to be greater than the force needed to lift the bale?

The input force have to be greater than the force needed to lift the bale because friction reduces the work input

Explanation:

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explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue