solution:
We know v0 = 0, a = 9.8, t = 4.0. We need to solve for v
so,
we use the equation:
v = v0 + at
v = 0 + 9.8*4.0
v = 39.2 m/s
Now we just need to solve for d, so we use the equation:
d = v0t + 1/2*a*t^2
d = 0*4.0 + 1/2*9.8*4.0^2
d = 78.4 m
Answer: Throwing some cargo out of the boa
Explanation:Pushing its mast, Pushing the front of the boat, Pushing another passenger are the forces in internal frame. Forces in the internal frame will not push the boat.
Throwing some cargo out of the boat will create force in external frame of the boat. This external force will push the boat and boat starts moving.