Answer:
1 ) Distribution of mass within the ball
2 ) Height of the ramp
Explanation:
Acceleration of a rolling body down an inclined plane is given by the following formula
a = g sinθ / ( 1 + k² / R² )
k is radius of gyration , R is radius of the spherical object ,
when acceleration is more , velocity will also be more .
for objects in which masses are lying in the periphery like in hollow sphere , the value of k²/R² will be high so denominator of the expression will be high so acceleration will be less , hence velocity on reaching the bottom will be less.
On mass of the ball , velocity will not depend .
If height is increased , ball will have acceleration for greater time so velocity will be high.
On radius it will not depend because , radius r and k increases proportionately.
The distance from the starting point is same as the hypotenuse of the right angle triangle and the length is 3.606 blocks
<h3>What is Pythagoras rule?</h3>
This is a rule applied in mathematics that states that the sum of both the square of the opposite and the square of adjacent is equals to the square if the hypotenuse. The rule holds true for a right angled triangle.
the part described forms a right angle triangle so the opposite three blocks while the adjacent is two blocks and the hypotenuse will be solved as follows:
Hypotenuse^2 = opposite^2 + adjacent^2
= 3^2 + 2^2
=9 + 4
= 13
Hypotenuse = sqrt(13)
Hypotenuse = 3.606 blocks
Read more on Pythagoras rule here: brainly.com/question/343682
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I'll put my answer in the comments but, part of the question is cut off do you mind putting a more readable and not sideways picture?
Answer:
a) Magnitude = 1.03 m/s², Direction: south
b)
Explanation:
a) The magnitude and direction of the acceleration can be calculated using the following equation:
(1)
Where:
: is the final speed = 9.40 m/s
: is the initial speed = 13.0 m/s
t: is the time = 3.50 s
Solving equation (1) for a, we have:
Hence, the magnitude of the acceleration is 1.03 m/s² and the direction of the bird's acceleration is the opposite of the initial velocity direction, which means that the bird is decelerating.
b) The final velocity of the bird can be found using the same equation 1:
Therefore, the bird’s velocity after an additional 1.20 s has elapsed is 8.16 m/s.
I hope it helps you!
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