Question

If a man increase his speed by 2 m/s , his K.E. is
doubled, the original speed of the man is
(1) (1 +2√2) m/s
(2) 4 m/s
(3) (2+2√2) m/s
(4) (2+ √2) m/s​

Answer 1

Answer:

(3) (2+2√2) m/s

Explanation:

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