Question

The diagram below shows a box weighing 100 N being pushed across a horizontal floor by...

The diagram below shows a box weighing 100 N being pushed across a horizontal floor by a force of magnitude FA = 280 N. Assume the surface to be frictionless. What is the magnitude of the normal force exerted on the block by the floor?

Group of answer choices

280 N

100 N

240 N

9,800 N

380 N

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Homework Answers

Answer #1

NB : - Figure mentioned in the question is not shown

As the box is moving on horizontal floor, and considering the applied force parallel to the floor, the normal force is equal to the weight acting vertically downwards.

Weight = 100 N

∴ Normal force exerted on the block by the floor = 100 N

The second option is the correct answer.

Note: If the applied force is not parallel to the floor, then the answer may change, due to the effect of resolved components of applied force.

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