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1 answer:
<h3><u>Question</u> :</h3>
Circle the scenario that shows balanced forces and will result in no movement of the gold bar.
<h3><u>Answer</u> :</h3><h3 />- 1st one is the scenario that shows balanced forces and will result in no movement of the gold bar. (circled in attachment)
In the first scenario there are equal forces of 5N acting on both sides of the gold bar, but this is not the case for the second and third scenarios. Equal forces are acting on both sides of the bar in the first scenario, hence showing balanced forces and resulting in no movement of the gold bar.
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Answer:
d = 2.45 meters
Explanation:
Mass of the ball, m = 0.5 kg
Radius of the circle, r = 0.16 m
The angular speed of the ball around the circle is,
The attached figure shows the whole scenario. Let is the force acting on the ball in tangential direction. The forces will balanced each other at equilibrium.
In horizontal direction,
................(1)
In vertical direction,
...............(2)
From equation (1) and (2) :
Also,
d = 2.45 meters
So, the value of d is 2.45 meters. Hence, this is the required solution.
