To find the kinetic energy . You have to use this equation : 1/2m(v^2) .
So acceleration = (final velocity - initial velocity)/time
So (fv-iv)/t=a
(45-110)/4.5
Gives you (-130/9)km/h^2
You may have to convert the SI units so just follow my steps and change what must be changed
Mass, velocity, and radius that the answer
The velocity of the ball is 12.5 m/s
Explanation:
The velocity of the ball is given by the ratio between the distance covered by the ball and the time taken:

First, we calculate the distance covered. We know that the radius of the circle is
r = 0.450 m
And the length of the circumference is

The ball makes 25.0 revolutions, so a total distance of

In a time of
t = 9.37 s
So, its velocity is

Learn more about velocity here:
brainly.com/question/5248528
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To find how far east we drove (This is the displacement), we simple subtract 12 from 40.
An easy way to do this in your head is to round 12 down to 10, subtract 10 from 40, then subtract the remaining 2. This should result in an answer showing that you drove 28 miles east.