The rotational speed of the two children is the same.
In fact, it is defined as
where
is the angle covered in the time
. As it can be seen, this quantity does not depend on the distance from the centre, so the rotational speed is 4.0 revolutions per minute for both children.
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The block on the table will move towards the right when the given unbalanced force act on the object. Option C is correct.
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</h2><h2>
Unbalanced Force:</h2>
When the force acting on the object is not equalized by the opposite force.
<h3>Net force: </h3>
It is defined as the vector sum of all forces acting on the object at an instance.
Where,
- net force
- Force acting on the right = 10 N
- Force acting towards left = -8 N
Put the values in the formula,
Since the net force is positive it means the move towards the right.
Therefore, the block on the table will move towards the right when the given unbalanced force act on the object.
Learn more about Unbalanced force:
brainly.com/question/1269006
Explanation:
total resistance=(2×2)/(2+2)= 1ohms