Question

# Only need question 2 and 3 answered. I will have another lengthy lab this evening that I will assign to you also.

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Experiment 3: Newton’s Third Law Procedure 1.Tie one end of the fishing line to a chair. Space the second chair about 10 feet away. 2.String the other end of the fishing line through the straw. 3.Tie the loose end of the fishing line to the second chair. 4.Inflate a balloon. Hold it closed with your fingers, and tape it to the straw. 5.Slide the straw/balloon back so that the mouth of the balloon is facing the nearest chair. 6.Let go of the balloon and observe what happens. Lab 3: Newton’s Laws Questions Please submit your answers for this experiment on the Word document provided to you. 1.Explain what caused the balloon to move in terms of Newton’s Third Law. 2.What is the force pair in this experiment? Draw a Free Body Diagram (FBD) to represent the (unbalanced) forces on the balloon/straw combination. 3. Add some mass to the straw by taping some metal washers to the bottom and repeat the experiment. How does this change the motion of the assembly? How does this change the FBD? 4.If the recoil of the rifle has the same magnitude force on the shooter as rifle has on the bullet, why does the shooter not fly backwards with a high velocity?