Rotational Motion Question 128

Question: A triangular set square of angles 30,60,90 and of negligible mass is suspended freely from the right angled comer and weights are hung at the two comers. If the hypotenuse of the set square sets horizontally, then the ratio of the weights W1/W2 is

Options:

A) 1:1

B) 1:3

C) 3:1

D) 1:3

Show Answer

Answer:

Correct Answer: B

Solution:

[b]

AB=l,AD=Acos30=l cos30cos30

BD=BCcos60=l cos60cos60

W1(AD)=W2(BD)W1W2=13



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