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Physics
The graph of force (F) versus displacement (x) for a body of mass 2 kg is shown in figure. If the body has a velocity of 20 m/s at x = 0, then the kinetic energy of body at x = 10m is
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Q. The graph of force (F) versus displacement (x) for a body of mass 2 kg is shown in figure. If the body has a velocity of 20 m/s at x = 0, then the kinetic energy of body at x = 10m is
A
436 J
B
460 J
C
484 J
D
282 J
E
$Area\, =\, \Delta K$ $\Rightarrow \, K_f - K_i \,=\,36 \Rightarrow \K_f - 400 = 36$
Solution:
Correct answer is (a) 436 J
