Which Statement is Correct: Ram & Shyam Work & Power

In summary, Ram and Shyam both climb a hill with the same mass. Ram wins the race and reaches the top in 5 minutes while Shyam takes 7 minutes. Although they do the same work in overcoming gravity, Ram exerts a greater power due to his faster acceleration and deceleration. Therefore, the correct statement is A) Ram and Shyam do the same work but exert different power.
  • #1
pratyushag
12
0

Homework Statement


Ram and Shyam both climb a hill.
They have the same mass.
Ram wins the race and reaches in 5 Minutes but shyam reaches in 7 mins.Choose the correct Statement:

A)Ram and shyam do the same work but exert different power
B)Ram and shyam do different work and exert different power
C)Ram and shyam do different work but same different power


Homework Equations


F=ma Work=F*S power=Work/Displacement


The Attempt at a Solution


Work=F*S
=ma*S
both have same mass and displacement... however the acceleration maybe equal or unequal
hence we cannot say if work is equal and consequently we cannot say if power is equal or unequal..

But this seems to deviate from the options provided in the question!
 
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  • #2
Hey pratyushag.

For this one the first thing that comes to mind is that the potential energy used to take both people up the mountain should be the same if the path is the same.

The only thing is though that the rate is different which will affect the work done.

Does this help you?
 
  • #3
I understand what you are saying at first the same concept of mgh came to my mind but then i started thinking F=ma should also work here... but why isn't that giving an answer?
 
  • #4
Think of integrating force with respect to distance (which is work). If the time is smaller for the same path, what does this imply about the force? (given that the distance is the same)?
 
  • #5
pratyushag said:
I understand what you are saying at first the same concept of mgh came to my mind but then i started thinking F=ma should also work here... but why isn't that giving an answer?
Using force makes it unnecessarily complicated for this, but here's what would happen.
Briefly, Ram would accelerate more than Shyam. Once up to speed, neither is accelerating. The work they are doing is in overcoming gravity, which is the same for both. The initial little extra work that Ram did has gone into giving him extra kinetic energy.
As they near the top, Ram decelerates more than Shyam does, so does a little less work near the end. This exactly compensates the extra work he did at the beginning.
 

FAQ: Which Statement is Correct: Ram & Shyam Work & Power

What is work and power?

Work and power are both physical concepts that describe the amount of effort or energy required to perform a task. Work is defined as the force applied to an object multiplied by the distance it is moved, while power is the rate at which work is done.

How are work and power related?

Work and power are related by the equation P = W/t, where P is power, W is work, and t is time. This means that the more work that is done in a given amount of time, the greater the power.

What is the difference between Ram and Shyam's work and power?

The difference between Ram and Shyam's work and power depends on the amount of force they are applying and the distance they are moving the object. If Ram and Shyam are applying the same amount of force but Ram moves the object a greater distance, then Ram will have done more work and have a greater power output.

How can we determine which statement is correct?

In order to determine which statement is correct, we need to have more information about the specific situation. We would need to know the amount of force applied by Ram and Shyam, the distance they moved the object, and the amount of time it took them to complete the task. With this information, we can calculate their work and power and determine which statement is correct.

Why is understanding work and power important?

Understanding work and power is important because it allows us to quantify and compare the effort and energy required to perform tasks. This can help us make informed decisions about how to complete tasks efficiently and effectively, and can also be useful in fields such as physics, engineering, and sports.

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