Answered: 9. A particle is sub as shown in Figure… | bartleby

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15.0 m. (d) What is the total work done by the force
eeth.
lle in
peed?
SECTION 7.4 Work De
dur-
V
on the particle as it moves (a) from x =
(b) from x = 5.00 m to x = 10.0 m, and (c) from x =
0 to x = 5.00 m,
10.0 m
e free
fixed
vaist,
ing it
%3D
to x =
over the distance x = 0 to x = 15.0 m?
%3D
F (N)
rope
work
3
n this
AB +
x (m)
8 10 12 14 16
nd use
2
4
Figure P7.9 Problemg A nnd 99
2N

Expert Solution

a) Work done from 0 to 5.0 0 m

Area under the graph gives the work done.

$\begin{array}{rcl} W_{1} & = & \frac{1}{2} b h \\ = & \frac{1}{2} (5 m) (3 N) \\ = & 7.5 J \end{array}$

b) Work done from 5.00 m to 10 m

$\begin{array}{rcl} W_{2} & = & b h \\ = & (10 m - 5.00 m) (3 N) \\ = & 15 J \end{array}$

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