How Does Human Power Relate to Acceleration in Lifting 40kg Up 36m?

In summary, the conversation is about human power and how it relates to work done in physics. The equation for work is discussed, with the understanding that force and mass are two different concepts. The acceleration due to gravity, typically around 10m/s^2 on Earth, is necessary to calculate the force applied by mass.
  • #1
Phadgebar
2
0
about human power??

consider the worker needs to bring up 40kg, the floor is about 36m so the work done is
w = (40kg) (10m/s^2) (36m)
w = 14 400J

i don't know what's the (10m/s^2) for??
 
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  • #2


Work is force times distance. If you only use 40kg x 36m, you're multiplying mass times distance.

Mass and force are two different concepts. You need gravity in order for mass to have a force. In order to figure out how much force that mass is applying, you need to multiply it by the acceleration due gravity, which in any case on the planet Earth is close to 10m/s^2...although closer to 9.81, which is what we typically use.
 
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  • #3


f=ma
 

1. What does 10m/s^2 mean in relation to human power?

10m/s^2 is a measurement of acceleration or the rate of change of velocity. It indicates that for every second an object is in motion, its velocity will increase by 10 meters per second.

2. How does 10m/s^2 affect human movement?

In terms of human movement, 10m/s^2 represents the acceleration due to gravity on Earth. This means that objects or humans will accelerate at a rate of 10 meters per second squared when falling towards the ground.

3. Is 10m/s^2 the same as 10 meters per second?

No, 10m/s^2 is a measurement of acceleration, while 10 meters per second is a measurement of velocity. They are related, but not the same.

4. How does 10m/s^2 compare to other acceleration values?

10m/s^2 is considered a moderate acceleration value. For comparison, the acceleration due to gravity on the moon is 1.62m/s^2, while the maximum acceleration of a human body is around 9.8m/s^2.

5. How is 10m/s^2 calculated?

10m/s^2 is calculated by dividing the change in velocity by the time it takes to achieve that change. It can also be calculated as the product of mass and acceleration, as seen in Newton's second law of motion: F=ma.

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