Answer:
3.29 s
Explanation:
Using v = u + at where u = initial velocity of boat = 0 m/s since it starts at rest, v = final velocity of boat = 56 m/s, a = acceleration of boat = 17 m/s² and t = time taken to accelerate to 56 m/s.
So, v -= u + at
t = (v - u)/a
substituting the values of the variables, we have
t = (56 m/s - 0 m/s)/17 m/s²
= 56 m/s ÷ 17 m/s²
= 3.29 s
It will take the boat 3.29 s to accelerate to 56 m/s at an acceleration of 17 m/s²
