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if the particle starts from rest at point A and loses contact at point C then the relation b/w α and β is???? ans. :- 3sinβ=2cosα Plz help how to do it...


if the particle starts from rest at point A and loses contact at point C then the relation b/w α and β is????

ans. :- 3sinβ=2cosα

Plz help how to do it... 

Grade:

2 Answers

Anuj Bansal
10 Points
9 years ago

mg(xcosα - xsinβ)

can u plz explain this step....

Ashwin Muralidharan IIT Madras
290 Points
9 years ago

Hi Anuj,

 

Height of A from the ground is xcos(alpha).

From the right triangle consider cos(alpha) = Ha/x

 

And similarly sin(Beta) = Hb/x

Where x would be the radius of the sphere.

 

Hope that helps.

 

All the best,

Regards,

Ashwin (IIT Madras).

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