Question

A boat is stationary at 12 meters away from a dock. The boat then begins to move toward the dock with
an acceleration of 5.0 m/s²
How long will it take the boat to reach the dock?

Answer 1

Answer: 2.19 seconds

Explanation:

Given:

Initial speed, u = 0 m/s

Acceleration of the boat, a = 5 m/s^2

Distance between the boat and dock, d = 12 m

Using the third kinematics equation to solve for time:

d = u*t + (1/2)*a*t^2

12 = 0*t + (1/2)*5*t^2

t = sqrt (12*2/5)

t = 2.19 seconds

Therefore, it will take the boat approximately 2.19 seconds to reach the dock