Answer:
a ball thrown upward
Explanation:
it is the only thing that is picking up speed
<u>Answer:</u>
<em>The required radius of its motion is
.</em>
<u>Explanation:</u>
The formula for calculating the required radius of its motion is given by

Where <em>m= mass </em>
<em>V= moving velocity
</em>
<em>F=frictional force
</em>
<em>r = radius of its motion
</em>
Then the required radius of its motion is given by

<u>Given that
</u>
<em>mas =0.0818 kg
</em>
<em>Frictional force= 0.108 N
</em>
<em>Moving with Velocity of = 0.333 m/s
</em>
<em>radius of its motion =
</em>
<em>Hence the required radius of its motion is r =
</em>
Answer:
I think your answer is <em><u>Atoms</u></em> .
Explanation:
<em><u>Defination of Atoms?</u></em>
An Atoms is the smallest unit of an element that still has all the properties of that substance.
Since sphere is performing pure rolling motion
So here the contact point of sphere with respect to inclined plane is always at rest.
This contact point will not move at any instant and and hence sphere will perform pure rolling.
So here we can say that sphere will have some friction force at the contact point but there is no displacement of that point.
So the work done by this static friction will always ZERO.


So there is no work done by friction on the sphere while it is in pure rolling.
Answer:
<h2>4 m/s</h2>
Explanation:
The speed of the ball can be found by using the formula

p is the momentum
m is the mass
From the question we have

We have the final answer as
<h3>4 m/s</h3>
Hope this helps you