To get around your arm, reach through the loop of your cuff and pull your partner’s rope through the loop towards your hand, and bring it over your hand to the other side of your arm.You should be able to see that you could pull the rope through the loop on that arm, if only your arm weren’t in the way! They must be able to show you how they accomplished it. Students now need to figure out how to separate themselves from their partner without removing the handcuffs or breaking or damaging the ropes in any way. ![]() Pair students and have them each put on their handcuffs so that they are linked together. In con nec tion with lever arm R to the centre of the rope, this force com po nent builds up a moment which will tend to rotate the rope round its own axis (Fig.It will also make the trick easier to accomplish. Tip: the loops should be loose enough that students can easily take their hands out for safety purposes. Each student receives one rope and ties loops on either end large enough to insert their hands like a pair of handcuffs.String or rope, pre-cut into metre lengths Explain the importance of observation when doing science.
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