Give any two examples each to show that friction is both a friend and a foe.

Friction slows down the motion.It also wears out soles of the shoes... Friction helps to write.It also helps to drive the vehicles.
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it also stops a running ball comimg towards you
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HOPE THIS ANSWER WILL HELPFUL TO YOU
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Merits
•It helps us to write
•it helps us to have a grip

Demerits
• It wears and tears a shoe sole
•it reduces the speed
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