Question

Why is it harder to move a heavy box at rest across the floor than to keep it sliding?

a)Because static friction is greater
b)Because sliding friction is greater
c)Because rolling friction is greater
d)None of these​

Answer 1

Correct Answer:

a) Because static friction is greater

Explanation:

• When you move a heavy box which is resting on the floor, it is difficult to move it without tiring yourself.
• This is because the more the object has connection with the floor, the more pressure and force it will need to get moving.
• Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
• Friction will be more the more an object is having a contact with another object.
• A round object will have less friction than a square or rectangle object which makes the round object to roll over easily.
• Sliding friction will be less because the floor is flat and the box is heavy which makes it moving across the floor easy than moving the box across.

Hence, the final answer will be a) Because static friction is greater, it will be harder to move a heavy box at rest across the floor than to keep it sliding.

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Answer 2

Answer:

Correct answer:

a)Because static friction is greater

Explanation:

• When you pass a heavy container that is resting at the ground, it's far hard to transport it with out tiring yourself.
• This is due to the fact the greater the item has reference to the ground, the greater stress and pressure it's going to want to get transferring.
• Friction is the pressure resisting the relative movement of stable surfaces, fluid layers, and fabric factors sliding in opposition to every other.
• Friction might be greater the greater anobject is having a touch withanother item.A spherical item can have much less friction than a rectangular or rectangle item which makes the spherical item to roll over easily.
• Sliding friction might be much less due to the fact the ground is flat and the container is heavy which makes it transferring throughout the ground smooth than transferring the container throughout.

Hence , the answer is a)Because static friction is greater that's why it is harder to move a heavy box at rest across the floor than to keep it sliding.

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