Applying Derived Formulas

A boat takes off from the dock at 2.5 m/s and speeds up at 4.2 m/s2 for 6.0 s. How far has the boat traveled? Round

your answer to the nearest whole number.

91 meters

Explanation:

Given:

x₀ = 0 m

v₀ = 2.5 m/s

a = 4.2 m/s²

t = 6.0 s

Find: x

x = x₀ + v₀ t + ½ at²

x = 0 + (2.5) (6.0) + ½ (4.2) (6.0) ²

x = 90.6

Rounded to the nearest whole number, the boat travels 91 meters.