262is it √7u
in the given figure find the velocity of the cylinder. assume the cylinder remains in touch with the wedges. all surfaces are frictionless.
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5 Answers
262use relative velocity concept.
suppose the left wedge is at rest.
then calculate remaining velocities
finally convert it to velocity w.r.t. ground
71Just Exaggerating what Aditya Said :
Sit on the Wedge L (for Left) and Observe: You see that the R (for Right) Wedge is moving away with the velocity ' 3u ' m/s. Now resolving this velocity along the incline and then along the x-y axes, we can get the velocity of the sphere as :
V sa = 3u i - 3√u j
Coming back to the ground frame, Va = - u i
So V sg = V s L + V L
Putting we have V sg = 2u i - √3 u j => | V sg | = √7 u
Notations : sg - Sphere w. r .t ground | l - Wedge L
- Anonymous hey there!!! liked the way of ur thinkin'........................but can u solve it using wedge constraint??Upvote·0·2015-01-24 01:07:43