# 102M prelab answers lab 4 - cross halfway between the...

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Question 1 3 out of 3 points Look at Fig. 4-1 in your manual, let’s say PEtot is the total potential energy of masses m1 and m2 (m1<m2). After m1 goes up by a distance d, and m2 goes down the same distance. The change in PEtot is (when something goes up its potential energy increases) Answer Selected Answer: Question 2 4 out of 4 points Using an ideal Atwood machine with masses m1 and m2, initially with m1 a distance 2h below m2 (m1<m2), what’s the velocity of either mass when they pass each other? (Hints: they

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Unformatted text preview: cross halfway between the starting positions of the two masses. Remember each mass has its own energy so you have to take both into account.) Answer Selected Answer: • Question 3 4 out of 4 points In this experiment you are going to get… from the DATASTUDIO (multiple answer) Answer Selected Answers: • Question 4 4 out of 4 points The speed of the mass m as it slides down a slope at an angle θ starting from vertical height h (starts from rest) will be? Answer Selected Answer: (2gh)^(1/2)...
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