Question

A boat takes 5 seconds to reduce its velocity from 9.5 m/s to 5.5 m/s. What is the boat’s acceleration while it travels the 12.0 m?

a) 0.8 m/s²
b) 0.4 m/s²
c) -0.4 m/s²
d) 0.1 m/s²

Answer 1

The boat's acceleration while it travels 12.0 m is -4 m/s².

Step-by-step explanation:

The boat's acceleration can be calculated using the equation: a = (vf - vi) / t

where a is the acceleration, vf is the final velocity, vi is the initial velocity, and t is the time taken.

Given that the initial velocity (vi) is 9.5 m/s, the final velocity (vf) is 5.5 m/s, and the time (t) is 5 seconds, we can substitute these values into the equation:

a = (5.5 m/s - 9.5 m/s) / 5 s

a = -4 m/s2

Therefore, the boat's acceleration while it travels 12.0 m is -4 m/s2.