Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
An evacuated box is at rest on a frictionless table. You punch a small hole in one face so that air can enter. (See Fig.) How will the box move? What argument did you use to arrive at your answer?
As the air molecules get into the box, they collide against its box and impart momentum to it. The upward momentum imparted by the air molecules get balanced by the downward momentum of the box, however due to the presence of hole, the same cannot take place for the vertical sides of box.Therefore the momentum imparted by the air molecules to the left exceeds the momentum imparted towards the right, as a result the object start moving towards left with some speed.
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -