1) 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: 50N/m. The maximum compression of the spring would be A) 0.5m B) 0.15m C) 0.12m D) 1.5m Answer: Option BExplanation:Apply the law of conservation of energy, $\frac{1}{2}mv^{2} = \frac{1}{2}kx^{2}$ $mv^{2} = kx^{2}$ or 0.5 × (1.5)2 = 50×X2 .'. x=0.15m
