Physics, asked by waseemwm857, 10 months ago

Workdone due to frictional force is ______________
a)+ve b)-ve c)zero d)maximum​

Answers

Answered by ItSdHrUvSiNgH
2

Explanation:

\huge\bf{\mid{\overline{\underline{ANSWER:-}\mid}}}

Work done is Dot product of Force and Displacement

Refer figure....

W = F. S

W = F S cos (a)

W = f S (-1)

W = - f S

So -ve sign shows work done by frictional force is always negative

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