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aliza.khan

  • 2 years ago

Two balls are dropped from a height of 6 m. Ball A bounces back up to a height of 4m whereas ball B bounces back up to 2m. Which ball experiences the larger impulse during its collision with the floor?

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  1. bahrom7893
    • 2 years ago
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    Can you give me the equation of impulse?

  2. shubhamsrg
    • 2 years ago
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    We need not calculate magnitude of impulse here, one experiencing larger impulse will rise higher.

  3. aliza.khan
    • 2 years ago
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    i thnk both balls have same impulse dnt u thnk?

  4. shubhamsrg
    • 2 years ago
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    impulse roughly can be said as change in momentum. That is a hint.

  5. aliza.khan
    • 2 years ago
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    yeah n p=mv is the realation

  6. shubhamsrg
    • 2 years ago
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    If a balls has risen higher, it means it must have greater initial velocity at the bottom ?

  7. ParthKohli
    • 2 years ago
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    LOL ^^

  8. aliza.khan
    • 2 years ago
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    no

  9. aliza.khan
    • 2 years ago
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    Two wires lie in the plane of paper and carry equal current in opposite direction as shown. At a point midway between the wires, the magnetic field is ?

  10. shubhamsrg
    • 2 years ago
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    You mean the direction ?

  11. aliza.khan
    • 2 years ago
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    yeah the magnetic field is it out of the paper? its zero into the paper or at the bottom of paper?

  12. shubhamsrg
    • 2 years ago
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    You must be knowing right hand thumb rule ?

  13. aliza.khan
    • 2 years ago
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    yeah but i just didnt remember it

  14. aliza.khan
    • 2 years ago
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    isnt it zero?

  15. shubhamsrg
    • 2 years ago
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    Nop it isnt

  16. shubhamsrg
    • 2 years ago
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    Both will add up,

  17. aliza.khan
    • 2 years ago
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    y? they are in opposite directions they cancel the effect n become zero

  18. aliza.khan
    • 2 years ago
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    if they are in same then they will be added up

  19. aliza.khan
    • 2 years ago
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    or it will be out of the paper?

  20. shubhamsrg
    • 2 years ago
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    You got to revise your right hand thumb rule to understand that, for same direction, magnetic fields cancel in between.

  21. aliza.khan
    • 2 years ago
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    it will be zero :)

  22. aliza.khan
    • 2 years ago
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    The coefficient of static friction between car’s tires and a level road is 0.80. If the car is to be stopped in a maximum time of 3.0 s, its maximum speed is (a) 2.4 m/s (b) 23.5 m/s (c) 7.8 m/s (d) 2.6 m/s whch equation will be applied here?

  23. aliza.khan
    • 2 years ago
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    A body moving with uniform acceleration has velocities 20 m s -1 and 30 m s -1 when passing through points A and B. Then wht the velocity mid-way between A and B is ?

  24. aliza.khan
    • 2 years ago
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    . A monkey of mass 20-kg rides on a 40-kg trolley moving with constant speed of 8 ms -1 along a horizontal track. Frictional forces can be neglected. If the monkey jumps vertically with respect to the moving trolley to grab the overhanging branch of a tree, the speed of the trolley after the monkey has jumped off is

  25. AravindG
    • 2 years ago
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    It is advised you post each question separately .Also try to post these questions in Physics Group

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