
Yefim S. answered 02/27/21
Math Tutor with Experience
Work done by friction W = mv2/2 - mgh = 57kg·82/2m2/s2 - 57kg·9.81m/s2·4m = -412.7 J
Mafer A.
asked 02/27/21of 57.0kg, slides down a ramp starting from rest. It travels down a ramp with an incline of 30.0° and a height of 4.00m with a speed of 8.00 m/s. What is the work done by friction on the block?
Yefim S. answered 02/27/21
Math Tutor with Experience
Work done by friction W = mv2/2 - mgh = 57kg·82/2m2/s2 - 57kg·9.81m/s2·4m = -412.7 J
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