Now, plugging in some real numbers for this, we know that 100 km/h equals the
following:
100
km
—
h
× 1000
m
—
km
×
1 h
—
3600 s
= 27.78
m
—
s
Now let’s put that value into our equation and see what we find:
h =
v
1
2
—
2g
h =
27.782
—
2 × 9.8 m/s
2
h = 39.36 m
The Orientation of Force and Work
As you know, we represent work in terms of force and the distance (or the displacement)
a force is applied to an object. Let’s consider an object being moved over displacement d,
undergoing a force F as shown below.
When the orientations of a force and displacement do not match, we must take this
into account. In the example above, work (W) is repr
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