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erastovalidia [21]
2 years ago
14

Please help me i em doing a test

Physics
2 answers:
Aleks [24]2 years ago
8 0

Answer:

Student 2 protons and valence electrons

timofeeve [1]2 years ago
6 0

1 is the answer of above question.

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You are investigating an elevator accident which happened in a tall building. An elevator in this building is attached to a stro
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Answer:

a) F = 2250 Ib

b) F = 550 Ib

c) new max force ( F newmax ) = 2850 Ib

Explanation:

A) The force the wall of the elevator shaft exert on the motor if the elevator starts from rest and goes up

max capacity  of elevator = 24000 Ibs

counterweight = 1000 Ibs

To calculate the force (F) :

we first calculate the Tension using this relationship

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750 + F - 2400 = 2400 / 4

hence F = 2250 Ib

B ) calculate Tension first

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F = 550 Ib

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Max = 2400 * 1.2 = 2880 Ib

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new max force ( F newmax ) = 2850 Ib

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