Solve the problem.
-A force acts on a certain object in such a way that when the object has moved a distance of $r$ (in $m$ ), the force $f$ (in newtons) is given by $f=2 r^{2}+2 r$. Find the work (in joules) done through the first four meters.
A) $64 \mathrm{~J}$
B) $40 \mathrm{~J}$
C) $44.7 \mathrm{~J}$
D) $58.7 \mathrm{~J}$

Question

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The Answer of Solve the problem.
-A force acts on a certain object in such a way that when the object has moved a distance of $r$ (in $m$ ), the force $f$ (in newtons) is given by $f=2 r^{2}+2 r$. Find the work (in joules) done through the first four meters.
A) $64 \mathrm{~J}$
B) $40 \mathrm{~J}$
C) $44.7 \mathrm{~J}$
D) $58.7 \mathrm{~J}$

Solve the Problem rrr (In mmm ), the Force fff (In Newtons) Is Given By

Solve the Problem $r$ (In $m$ ), the Force $f$ (In Newtons) Is Given By