- #1
physicskid72
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Homework Statement
an object having a mass of 25 kg is moving at a steady speed on ice. The coefficient of friction is 0.12.
a.) how much work is done moving the object 35 m?
b.) how much work is done if the object is accelerated at 0.55 m/s/s over a distance of 35 m?
Homework Equations
W=Fd Ff= mewFn F=ma
The Attempt at a Solution
a.)W= 0.12(25)(9.80)(35)
= 1029 J
b.) F= ma
= 25(0.55)
= 13.75 J
This is where i am confused, do i add up the work from part a to part be to get the total work? thanks