Question

Physics Challenge!

QUESTION:-
There is a heavy ball on the ground floor of a 3-storey building. A man want to bring the ball to first floor. At what position of the ball must he apply a MINIMUM FORCE in order to bring the ball to first floor.

[Refer to diagram]
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• Hint:- Something related to Gravity
• Thanks, Do not spam

Difficulty Level:- Easy​

Answer 1

Answer:

Explanation:

First, we will draw the diameter of a circle which connects the floors from the both sides.

So, refer to the attachment.

Now, since it is the diameter, and we can observe a right angle triangle, the hypotenuse is the largest distance in the right angle triangle. So, this will also have a large that is largest distance.

So, the ball which is touching the other side that is the 2nd upper portion will be the place where the man needs to apply the force where it will be minimum. Hence the answer.

Apply the concept of Center of Gravity and fulcrum now.

The first upper that is the ground floor upper portion will be the place where the force applied will be maximum. So, the answer can never be from the down part of the stair, which is a common misconception.

[In attachment, the diameter is drawn and not a chord, assuming that the centre is somewhere in the red line.]

Answer 2

$\huge\bf\fbox\red{Answer:-}$

First, we will draw the diameter of a circle which connects the floors from the both sides.

So, refer to the attachment.

Now, since it is the diameter, and we can observe a right angle triangle, the hypotenuse is the largest distance in the right angle triangle.

So, this will also have a large that is largest distance.

So, the ball which is touching the other side that is the 2nd upper portion will be the place where the man needs to apply the force where it will be minimum.

Hence the answer.

Apply the concept of Center of Gravity and fulcrum now.

The first upper that is the ground floor upper portion will be the place where the force applied will be maximum.

So, the answer can never be from the down part of the stair, which is a common misconception.

[In attachment, the diameter is drawn and not a chord, assuming that the centre is somewhere in the red line.]