how far will it travel? [

how far will it travel? 2) Mr. Harlow threw his pocket watch off the roof of Haig! He threw it up with a speed of 20 m/s. If [2 marks) it landed 5.15 s later, how tall is the building? 3) A Hedgehog is swimming across a 50.0 m wide river that has a current of 0.200 m/s If the animal heads east with a speed of 0.250 m/s through the water; a) How many seconds will it take him to reach the other side? b) How many metres down-river will he end up? [2 marks] [1 marks]