Valentina, the Russian Cosmonaut, goes outside her ship for a spacewalk, but when she is floating 15 m from the ship, her tether catches on a sharp piece of
metal and is severed. Valentina tosses her 2.0-kg camera away from the
spaceship with a speed of 12 m/s. a) How fast will Valentina, whose mass is
now 68 kg, travel toward the spaceship?