classify the following into connect and noncontact force
a. a boy crying a heavy box in his hand
b. An Apple falling from a tree
c. climbing of nails on a magnet
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b) A apple falling from a apple tree.is an example of a non-contact force.
A force applied to an object by another body that is not in direct contact with it is known as a non-contact force. Non-contact forces come into play when objects do not have physical contact between them.
A force that is applied by objects in contact with each other is known as contact force. The contact force acts on a point of direct contact between the two objects.
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