When we apply glue to a smooth surface the friction is increased and much force is applied to separate the two surfaces from each other? How is the friction increased?What are the fuses of friction?

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Solution

Extra force is required for separation of two materials after applying glue. The main reason for this is not sue to the increase in friction but due to the adhesive forces of the glue.

Although in a lot of cases friction is a hindrance but it is also very essential. In order to walk we depend on the friction between the soles of our feet or shoes and the ground. The tyres and brakes on vehicles depend on friction to stop, slow down and start moving. It is the air resistance or drag that slows down a parachute.

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