When two tectonic plates move in opposite directions, it causes magma to rise, creating a new seafloor.
-- There's a force of 240N pushing her backwards.
-- She's maintaining a steady speed (of 2.5 m/s) .
-- In order to maintain a steady speed (no acceleration),
the forces on her must be balanced. So she's maintaining
a steady force of 240N forward.
-- Every time she moves 1 m forward, she does work of
(force) x (distance) = 240 joules.
-- She moves 2.5 meters forward every second.
So she's doing (240 x 2.5) = 600 joules of work every second.
-- 600 joules per second = 600 watts .
Answer:
Energy
Explanation:
The unit is 
.
We can see the formula of kinetic energy is
Where 
is the mass and 
is the velocity of the object.
Which means its unit would be kg times square of meter per second, that is . Which is often referred as Joule.
Also, when look at the formula of work done by an object.
Where 
is the force and 
is the distance traveled by the object due to force .
We an see that its unit is kg meter per second squared times meter. That is equivalent to . This is also a type of energy.
So, the unit is the unit of energy.
