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Sidana [21]
3 years ago
6

A swing oscillates 8 times in 12 seconds what is its period what is its frequency

Physics
1 answer:
kotykmax [81]3 years ago
4 0
[Period (T)] T=time/# of cycles
T=12/8=3/2

[Frequency (F)] F=# of cycles/time
F=8/12=2/3

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1. Velocity at which the packet reaches the ground: 121.2 m/s

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substituting, we find

v_f^2 = 2ad\\v_f = \sqrt{2ad}=\sqrt{2(9.8 m/s^2)(750 m)}=121.2 m/s

2. height at which the packet has half this velocity: 562.6 m

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In order to do that, we use again the same SUVAT equation substituting v_f with this value, so that we find the new distance d that the packet travelled from the helicopter to reach this velocity:

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2 years ago
Match to the correct answers
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