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  1. C

    Physics: Post your doubts here!

    Sorry, but can you please explain this bit again. Why are we considering the direction of acceleration of just the elevator when we are calculating the power of not just the elevator, but the combined power of both the masses/power of the system.
  2. C

    Physics: Post your doubts here!

    Thank you.
  3. C

    Physics: Post your doubts here!

    We are told to calculate the power of the system/masses. The formula P=FV is used. What do you substitute for m in (ma×v)?
  4. C

    Physics: Post your doubts here!

    What power are we asked to calculate in the question? Also, can you please explain how you used the formula P=fv? Why did you substitute those values?
  5. C

    Physics: Post your doubts here!

    Need help with this question.
  6. C

    Physics: Post your doubts here!

    I'm just trying to be able to write the heavier mass' equation (Mg-T=Ma) with proper understanding of why even there exists force of tension on it. From my knowledge of force of tension, it is an upward force exerted by a string/rope on an object when its pulled upwards by it. Hence, it made...
  7. C

    Physics: Post your doubts here!

    Yes, I get that. I understood that the heavier mass is exerting force of tension on the light mass, so it's known where tension acting on the lighter mass comes from. What I dont understand is why is there tension acting on the heavier mass? What exerts it on the heavier mass?
  8. C

    Physics: Post your doubts here!

    Then how is tension exerted on the heavier mass?
  9. C

    Physics: Post your doubts here!

    Isnt mass M pulling mass m and hence exerting the tension force on it? Or is it just the string which is exerting forces of tension on both the masses? Like, are both the masses completely independent of each other?
  10. C

    Physics: Post your doubts here!

    Yes
  11. C

    Physics: Post your doubts here!

    Can you please explain more about how we can think of the tension forces 'T' acting on the masses, for better understanding? Like, how are the tension forces even exerted on the masses? Also, is T in both masses equal in magnitude? If yes, why?
  12. C

    Physics: Post your doubts here!

    Need help with this.
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