Question

1

Answer 1

If you know the starting velocity of an object, the final velocity, and
the time interval during which the object changed velocity, you can
calculate the acceleration of the object. The formula for acceleration
is shown below.
acceleration =
a =
Remember that velocity is expressed in units of meters per second.
The standard units for acceleration, therefore, are meters per second
over time, or meters per second per second. This is simplified to
meters per second squared, which is written as m/s2.
As the girl in the photograph at left sleds down the sandy hill,
what happens to her velocity? At the bottom of the hill, her velocity
will be greater than it was at the top. You can calculate her average
acceleration down the hill if you know her starting and ending velocities
and how long it took her to get to the bottom. This calculation is shown
in the sample problem below.
vfinal – vinitial
t
final velocity – initial velocity

Answer 2

did that help u;)?