Answer:
The acceleration of the sled is
.
Explanation:
It is given that,
Initial speed of sled is 0 because it was at rest.
It is placed at an angle of 28° on a frictionless hill.
We need to find the acceleration of the sled. It is placed at an incline. It means that the acceleration of the sled is given by :

So, the acceleration of the sled is
.
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As a rocket increases height and slows down, it gains more and more potential energy and loses more and more kinetic energy. Potential energy is store energy (usually determined by height), and kinetic energy increases as speed increases.
Answer:
D
Explanation:
cuz it transforms from one to another can't be created not destroyed.PERIOD!