A Spy In A Speed Boat Is Being Chased A Spy In A Speed Boat Is Being Chased Down A River...WEBASSIGN PHYSICS QUESTION!!?

A spy in a speed boat is being chased down a river...WEBASSIGN PHYSICS QUESTION!!? - a spy in a speed boat is being chased

A spy in a speed boat is being chased by a river by government officials in a faster boat. As the boat moves with the officials spy ship, both to the brink of a fall of 7.7 m. If the speed of spyware is 20 m / s, and the rate of employees is 23 m / s, how far the two vessels when the earth under the waterfall?