Question

How far does a sled travel in 3 hours while accelerating from 10 miles/hour to 14 miles/ hour?

Answer 1

$$d=\dfrac{1}{2}(v_0+v)t,$$ $$d=\dfrac{1}{2}\times(10\ \dfrac{mi}{h}+14\ \dfrac{mi}{h})\times3\ h=36\ mi.$$