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Len [333]
3 years ago
10

3. An object of mass 90 kg travels down a slide.

Physics
1 answer:
Zolol [24]3 years ago
6 0
Gpe= 90* 9.81 * 15 = 13243.5 Joules

KE= 13243.5 =1/2 m v^2
v^2= 295.3
v= 17.2 m/s
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Answer:

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The sound from a bolt of lightning travelled 4.08 km in 12.0 s. What was the speed
LenaWriter [7]

Answer:

83.67 m/s

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Set up a calculation to convert units of measure to what you need.

You have km/s and you need m/s.

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Answer:

v_{avg} = 0

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