1. The problem statement, all variables and given/known data A 1.70 kg block rests on the icy surface of a frozen pond, which you can assume to be frictionless. If the location of the block is measured to a precision of 0.30 cm, what is the minimum uncertainty in the block's speed, assuming the mass is known exactly? 2. Relevant equations xp=h/4(3.14) 3. The attempt at a solution xp=h/4(3.14) x(mv)=h/4(3.14) I plugged in all the values and got v. The answer was wrong. I then multiplies by .0003 and that was also wrong.