Work, Energy, Power And Collision Test

Result

Work, Energy, Power And Collision Test - 1

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Question 1
1 / -0

The vessels A and B of equal volume and weight are immersed in water to a depth h. The vessel A has an opening at the bottom through which water can enter. If the work done in immersing A and B are W_Aand W_B respectively, then

A
W_A= W_B

B
W_A< W_B

C
W_A> W_B

D
W_A>=< W_B

Solution

When the vessels are immersed in water, work has to be done against up-thrust force but due to opening at the bottom in vessel A, up-thrust force goes on decreasing. So work done will be less in this case.