The data for the first part of the experiment support the first hypothesis. As the force applied to the cart increased, the acceleration of the cart increased. Since the increase in the applied force caused the increase in the cart's acceleration, force and acceleration are directly proportional to each other, which is in accordance with Newton's second law.
Answer:
KE2 = 2 KE1
1/2 M V2^2 = 2 * (1/2 M V1^2)
V2^2 = 2 V1^2
V2 =
V1
Since momentum = M V the momentum increases by 
<span>If an object slows down, the value of its acceleration is "Negative"
Hope this helps!</span>
Can you add an image of the work
The acceleration of the ball in the vertical direction is
, downward.
Explanation:
This is a typical example of projectile motion, which consists of two independent motions:
- A uniform horizontal motion at constant velocity (since there are no forces in the horizontal direction)
- A vertical accelerated motion at constant acceleration (due to the presence of the force of gravity)
We are considering now the vertical motion only. There is only one force acting on the ball in this direction: the force of gravity, of magnitude
F = mg
where m is the mass of the ball and
the acceleration due to gravity, downward. This means that the acceleration of the ball in this direction is (using Newton's second law)

Therefore, the acceleration of the ball in the vertical direction is
, downward.
Learn more about projectile motion:
brainly.com/question/8751410
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