In a shoe,the laces pass through a set of holes in a regular crisscross manner in order to easily
tighten the shoe. Each hole helps change the direction of the lace thereby making it easier to tighten
the flaps. What simple machine does this mechanism use?
d) Screws
a) Levers b) Fixed pulleys c) Inclined planes
Answers
Answered by
20
Answer:
fixed pulley ..........
Answered by
8
Answer:
Screw is the right answer
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