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Mnenie [13.5K]
2 years ago
14

A 65 kg woman is inside an elevator. (A) Calculate her apparent weight (normal force) in Newtons if the elevator moves at consta

nt speed of 10 m/s downward. Be sure to keep 3 significant digits.
Physics
1 answer:
stiks02 [169]2 years ago
3 0

Answer:

W = 637 N

Explanation:

For this exercise we will use Newton's second law

         F -W = m a

where F is the force, m the mass and the acceleration

in this case the force is the weight of the body and as the elevator goes at constant speed the acceleration is zero

         F = W

         a = 0

       

          F = W

          W = m g

          W = 65 9.8

          W = 637 N

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Explanation:

Given that:

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If 1 minute = 60 seconds

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3 years ago
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Answer:

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Explanation:

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v² = u² + 2gh

During upward motion, gravity is negative

v² = u² + 2(-g)h

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Explanation:

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