A mass of 0.5 kg moving with a speed of 1.5m/s on a horizontal smooth surface, collides with a nearly weightless springs of force constant k=50N/m. The maximum compression of the spring would be:
A
0.15 m
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B
0.12 m
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C
1.5 m
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D
0.5 m
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Solution
The correct option is A 0.15 m Loss of K.E. = Gain in elastic in P.E. 12mv2=12kx2 or 0.5×(1.5)2=50×x2 or x=0.15m