A34-kg child on an 18-kg swing set swings back and forth through small angles. if the length of the very light supporting cables for the swing is 4.9 m, how long does it take for each complete back-and-forth swing? assume that the child and swing set are very small compared to the length of the cables.
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A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
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A34-kg child on an 18-kg swing set swings back and forth through small angles. if the length of the...
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