A block resting on a smooth horizontal floor is being pushed by a constant horizontal force. If ...

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A block resting on a smooth horizontal floor is being pushed by a constant horizontal force. If the kinetic energy gained by the block at first, second and third second are \( K_{1}, K_{2} \) and \( K_{3} \), respectively, then \( K_{1}: K_{2}: K_{3} \) would be equal to
a. \( 1: 1: 1 \)
b. \( 1: 3: 5 \)
c. \( 1: 4: 9 \)
d. \( 1: 2: 3 \)
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