10. A lead weight of 500g mass is swung in a circular path with a 2.0...
10. A lead weight of 500g mass is swung in a circular path with a 2.0 m cord. if the speed of the weight is 4 m/s the tension in the cord is:
a. 1 N
b. 2 N
c. 4 N
d. 8 N
e. 10 N
29. A 5000 kg freight car runs into a 10,000 kg freight car at rest. they couple upon collision and move with a speed of 2 m/s. What was the initial speed of the 5000 kg car?
a. 4 m/s
b. 5 m/s
c. 6 m/s
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10. A lead weight of 500g mass is swung in a
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