Problem from I.E Irodov

A horizontal disc rotates with a constant angular velocity w = 6.0 rad/s about a vertical axis passing through its center. A small body of mass m = 0.50 kg moves along the diameter of the disc with a velocity v' = 50 cm/s which is constant relative to the disc. Find the force that the disc exerts on the body at the moment when it is located at the distance r = 30 cm from the rotation axis.

7 Answers

71
Vivek @ Born this Way ·

I think the concept of Coriolis Force is not is not in the syllabus of the IIT-JEE , and not even the most prime the International Physics Olympiad. However the question is an easy one.

You may try to have a look at the solution.

1057
Ketan Chandak ·

36
rahul ·

ya i too think the same...
never heard of this "Coriolis force"....!!

21
Swaraj Dalmia ·

Could someone deduce the formula for coriolis force,i am getting mv'w and not 2mv'w

71
Vivek @ Born this Way ·

You can have a look at the derivation easily on google. But I would recommend skipping it. The reason being that it is too complicated to be included in International Physics Olympiads as well. Except some simpler cases, it's use involves three dimensional co ordinates which is nerdy.

1
Linkin Park ·

dont try solving problems from irodov. you will end up scratching your head on most occasions.

1
EX_BITSIAN ·

https://www.youtube.com/watch?v=Z47IRtuF0eI

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