Question

i) Friction produces heat when two surfaces moving relatively in opposite

direction

ii) Friction produces heat when two surfaces moving relatively in same direction
[ ]

A) (i) is correct
B) (ii) is correct

C) both (i) and (ii) are ccorrect
D) both (i) and (ii) are wrong​

Answer 1

Answer:

a (i) is correct

hope this helps

Answer 2

Answer:

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