Question

A jet boat is drifting with a speed of 5.0 m/s to the right when the driver turns on the motor. The boat speeds up for 6.0s with an acceleration of 4.0 m/s^2 leftward

Answer 1

-42 m

Step-by-step explanation:

I just did it

Answer 2

x = 102 [m]

Step-by-step explanation:

We need to complete the problem, for this case the question Is Missing, which could be found through google.

The question is, what is the displacement of the boat from the position when the motor was turned on?

First we have to identify the initial data:

vo = initial velocity = 5[m/s]

t = time interval = 6 [s]

a = aceleration = 4 [m/s^2]

x = displacement = ?

By means of the following kinematics equation we can find the displacement

`v_(f) = v_(o) +a*t\\v_(f) =5+4*(6)\\v_(f) = 29[m/s]`

`v_(f) ^(2) =v_(0) ^(2) +2*a*x\\x=(v_(f) ^(2)-v_(0) ^(2))/(2*a) \\x=(29^(2)-5^(2) )/(2*4) \\x=102[m]`