Mass is added to the cart by the addition of a wooden block that rests on top of it. When the force is increased to 4.0 newton's, the block falls off as the cart begins to accelerate. Why does it fall off when the force is increased to this level?

Question

TestUstad · Accepted Answer

The mass of the cart becomes too large, and the load must be reduced for the cart to accelerate. When the force applied reaches 4.0 newtons, the added mass of the block increases the total mass of the cart. This increase in mass requires a reduction in load for the cart to accelerate effectively, causing the block to fall off. The other options are incorrect because they do not accurately describe the relationship between force, mass, and acceleration in this specific situation.

TestUstad · Answer

The force accelerating the cart becomes large enough so that the force of friction holding the block in place is overcome

TestUstad · Answer

The force of friction holding the block in place becomes large enough to overcome the force accelerating the cart

TestUstad · Answer

The acceleration becomes nonuniform with this force

Mass is added to the cart by the addition of a wooden block that rests on top of it. When the force is increased to 4.0 newton's, the block falls off as the cart begins to accelerate. Why does it fall off when the force is increased to this level?

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