3. A block X of weight 10 N is stacked on a block Y of weight 20 N. Block X is fixed to a wall with

In this video, we solve an IB Physics HL May 2024 TZ2 Paper 1 MCQ question about the forces involved when a block is stacked on another block and a string is attached to a wall.

The question:
A block X of weight 10 N is stacked on a block Y of weight 20 N. Block X is fixed to a wall with a light string. The coefficients of static friction between the blocks and between block Y and the ground are both 0.2. What is the value of the minimum force F required to move block Y, and what is the tension T in the string immediately before block Y begins to move?

To solve this, you’ll need to use key concepts in friction, static friction coefficient, and the forces acting on both blocks, including the normal forces, frictional forces, and the tension in the string. We calculate the friction between the blocks and ground, analyze the forces on block Y, and find the conditions under which block Y just begins to move.

Solution approach highlights:

Identify the forces acting on both blocks (normal force, frictional force, tension).
Apply the equation for static friction:
friction =𝜇 x normal .
Solve for the force needed to overcome static friction to move block Y.
Calculate the tension in the string by analyzing the forces on block X.
Tip: Pause the video and try solving it yourself before watching the solution. If you're stuck or don't arrive at the correct answer, play the video to check the step-by-step explanation.

Keywords:
IB Physics HL, May 2024 TZ2, block friction problem, forces on blocks, tension in string, physics forces, static friction, mechanics, IBDP Physics Paper 1 solutions, past paper questions, high-level physics problems.

Hashtags:
#IBPhysics #IBDP #PhysicsHL #May2024 #Paper1 #PhysicsMCQ #StaticFriction #Mechanics #FrictionForce #TensionInString #PhysicsSolutions #PastPapers

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