Answer:
They would be at where they are for hours after.
Explanation:
Although the motion of the water is appearing to be traveling East, making Johnny think that the wave is actually pushing on the boat East bound, what is really happening here is that the motion of the particles of water is actually moving up and down that propagate to the East. Therefore, the wave would only be pushing the boat up and down, not toward land.
Answer:
a. F = 245 Newton.
b. Workdone = 392 Joules.
c. Power = 196 Watts
Explanation:
Given the following data;
Mass = 25kg
Distance = 1.6m
Time = 2secs
a. To find the force needed to lift the mass (in N );
Force = mass * acceleration
We know that acceleration due to gravity is equal to 9.8
F = 25*9.8
F = 245N
b. To find the work done by the student (in J);
Workdone = force * distance
Workdone = 245 * 1.6
Workdone = 392 Joules.
c. To find the power exerted by the student (in W);
Power = workdone/time
Power = 392/2
Power = 196 Watts.