Question

Which of the following statements is true?

1) On a level surface, normal force equals weight.

2) The more inertia an object has, the more easily it will change its motion.

3) The more massive an object, the more quickly it will accelerate.

4) Action-at-a-distance forces require physical contact between objects.

Answer 1

Answer:

B) The more inertia an object has, the more easily it will change its motion.

Answer 2

The following statement is true:

1) On a level surface, normal force equals weight.

• The more the inertia the object will have the more will be the effected mass and more the mass more difficult will be the change in its motion.
• The more massive the object the more force is required to be applied to move or accelerate the object.
• For keeping two objects apart at a distance there is no need of physical contact between the objects. Instead individual forces can be applied on each object separately.
• The normal force acting on the object is equal to the weight of the object.
• If the object is placed on the level surface, the weight becomes equal to the force of gravity.

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