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An object of mass 10 kg moves with a speed of 2 m/s. What is its kinetic energy?

A5 J
B10 J
C40 J
D20 J
Answer & Solution
Correct answer: D. 20 J
1. KE = ½ m v². 2. = ½ × 10 × 2² = ½ × 10 × 4. 3. = 20 J. _Source: RRB Group D CEN-02/2018 PYQ, Q.38._
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