When conducting and experiment you want to have a notebook and something to write down notes with so you can keep everything organized and proper, and to not miss anything in the experiment. Also you want to have everything in order of the way it should be in.
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Answer:
<h3><u>1</u><u>2</u><u>9</u><u> </u><u>N</u></h3>
Explanation:
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Answer:
Explanation:
Given that,
Radius of the wheel, r = 20 cm = 0.2 m
Initial speed of the wheel, 
Displacement, 
To find,
The angular acceleration and the distance covered by the car.
Solution,
Let
is the angular acceleration of the car. Using equation of rotational kinematics as :



Let t is the time taken by the car before coming to rest.


t = 30.39 seconds
Let v is the linear velocity of the car. So,


v = 150.79 m/s
Let d is the distance covered by the car. It can be calculated as :


d = 4582.5 meters
or
d = 4.58 km
Answer:
The initial velocity of the ball is <u>39.2 m/s in the upward direction.</u>
Explanation:
Given:
Upward direction is positive. So, downward direction is negative.
Tota time the ball remains in air (t) = 8.0 s
Net displacement of the ball (S) = Final position - Initial position = 0 m
Acceleration of the ball is due to gravity. So,
(Acting down)
Now, let the initial velocity be 'u' m/s.
From Newton's equation of motion, we have:

Plug in the given values and solve for 'u'. This gives,

Therefore, the initial velocity of the ball is 39.2 m/s in the upward direction.
Answer: kooi kooi
how r u and thanks for the free points :)