time to fall= sqrt(h/2g)=.48 sec check that
distance difference=speeddifference*timeToFall
= (27-16)*.48= about five meters
A spy in a speed boat is being chased down a
river by government officials in a faster craft.
Just as the officials’ boat pulls up next to the
spy’s boat, both boats reach the edge of a 4.6
m waterfall. The spy’s speed is 16 m/s and
the officials’ speed is 27 m/s.
How far apart will the two vessels be when
they land below the waterfall? The acceleration of gravity is 9.81 m/s squared
1 answer
1 answer