Question

David is rowing a boat upstream. The river is flowing at a speed of 2 miles per hour. David starts rowing at a speed of 6 miles per hour, and his speed decreases at a rate of 1.5 miles per hour.

Answer 1

so we are given the acceleration , it is -1.5 mph / hr

Answer 2

we can use the equation
x = 1/2* a * t^2 + vo*t + xo

Answer 3

whats the question?

Answer 4

relative to the ground, David's speed going upstream is ( 6 - 2 ) or 4 mph