A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal

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A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless spring of force constant k = 50 N/m. The maximum compression of the spring would be

1. 0.5 m
2. 0.15 m
3. 0.12 m
4. 1.5 m

Correct Option: B

	1	mv² =	1	kx²
	2		2

⇒ mv² = kx²
or 0.5 × (1.5)² = 50 × x²
∴ x = 0.15 m