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nalin [4]
3 years ago
12

Three of your friends are all sitting g on one end of a seesaw. The combined weight is 275 N. The length from the fulcrum to you

r friends is 2.5 m. The rest of the seesaw (from the fulcrum to you) is 4.5 m. What is the MA? What effort force is needed to lift your friends?
Physics
1 answer:
yanalaym [24]3 years ago
4 0

Answer:

1.8

153 N

Explanation:

MA = effort arm / load arm

MA = 4.5 / 2.5

MA = 1.8

MA = load force / effort force

1.8 = 275 N / F

F ≈ 153 N

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v = 3.94 \times 10 {}^{ - 25}m/s

what is momentum?

The momentum p of a classical object of mass m and velocity v is given by pclassical =mv.

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pball = pphotons =  \frac{6.626 \times 10 {}^{ - 34}kgm/s  }{700 \times 10 {}^{ - 9} }

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v = 3.94 \times 10 {}^{ - 25}m/s

learn more about momentum of photon from here: brainly.com/question/28197406

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