A rifle bullet with mass 8.00 g strikes and embeds itself in ablock with mass 0.992 kg that rests on a frictionless, horizontalsurface and is attached to a coil spring. The impactcompresses the spring 15.0 cm. Calibration of the springshows that a force of 0.750 N is required to compress the spring0.250 cm.
A. Find the magnitude of the block's velocity just afterimpact.
B. What was the initial speed of the bullet?