The graph between the magnitude of resistive force
F acting on a body and the position of the body
travelling in a straight line is shown in the figure.
The mass of the body is 25 kg and initial velocity
is 2 m/s. When the distance covered by the body is
4 m, its kinetic energy would be (no other force acts
on it)
F (Newton)
10-
0
1
2 3 4 x(m)
(6) 405
(a) 50 J
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