JEE Main 2026 · 6 Apr · Shift 2 · Physics Q29

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PhysicsSingle correct+4 / -1Question 29 of 75

A body of mass 1 kg moves along a straight line with a velocity $v=2x^2$ . The work done by the body during displacement from $x=0$ to 5 m is ________ J.

250

1250

1000

Answer and worked solution

Official answer: C

Work-energy. At $x=5$ , $v=50$ m/s, so the work done on the body is
$\Delta K=\tfrac12(1)(50)^2=1250\text{ J}.$

(C)

Topics:Work-energy theorem

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JEE Main 2026 · 6 Apr · Shift 2, Physics question 29