(Answered) 1 a 10-kg block slides down the incline shown a distance of

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1. A 10-kg block slides down the incline shown a distance of 1m. If µ_k=0.34, how much work does the force of friction do during the motion described?

Angle=30 degress

2. If the 10kg block shown above with the same frictional characteristics and starting from rest slides down the incline in such a way as its height is reduced by 3m, how fast is the block moving when it reaches the lower height.

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