1. A speed skater moving across frictionless ice at 8.20 hits a 4.60-m-wide patch of rough ice. She slows steadily, then continues on at 5.30 .
SLC: I am assuming that Vf = 5.3 m/s ; Vi = 8.2 m/s ; d = 4.60 m ; a =? ; t = ?.
Can you get me started with a correct forumula? I am fairly certain...