Physics

Physics

Problem

The magnitude of a variable force along the

x

-axis is given by the following description: •

0\le x\le3\,\text{m}

:

F=2x\,\text{N}

•

3\le x\le4\,\text{m}

:

F=10\,\text{N}

(constant) •

4\le x\le6\,\text{m}

:

F

decreases linearly from

10\,\text{N}

at

x=4\,\text{m}

to

0\,\text{N}

at

x=6\,\text{m}

Determine the total work done from

x=0

to

x=6\,\text{m}

. a)

39\,\text{J}

b)

19\,\text{J}

c)

29\,\text{J}

d)

26\,\text{J}

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