A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to try leaping it with his car. The side the car is on is 20.3 mm above the river, whereas the opposite side is a mere 1.4 mm above the river. The river itself is a raging torrent 64.0 mm wide.


Required:

a. How fast should the car be traveling at the time it leaves the road in order just to clear the river and land safely on the opposite side?

b. What is the speed of the car just before it lands on the other side?