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Rudik [331]
3 years ago
15

A hydraulic system at the mechanic shop can perform up to 180,000 joules of work in a day. if throughout the day it can lift 10

cars from the ground to a height of 2 meters, how much can the cars each weigh in Newtons?
Physics
1 answer:
snow_tiger [21]3 years ago
5 0

Answer:

9,000 N.

Explanation:

Workdone can be defined as the ability to do work. It is also the product of the force and the distance it is being moved.

Mathematically,

W = F * d

= 180,000/2

= 90,000 N.

Weight of the 10 cars = 90,000 N.

Weight of a car = 90000/10

= 9,000N.

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T’= 4/3 T  

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Explanation:

For this problem let's use Newton's second law applied to each body

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In the reference system we have selected the direction to the right as positive, therefore the downward movement is also positive. The acceleration of the two bodies must be the same so that the rope cannot tension

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    T = m_A a

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     m_B = M

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    T = m_A a

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    T = ½ M g

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We seek tension for this case

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Let's look for the relationship between the tensions of the two cases

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   T’= 4/3 T

The new tension is 4/3 = 1.33 of the previous tension the answer  e

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