Q. Referring the graphs, which of the following is/are correct?

Work, Energy and Power Report Error

A

The particle has stable equilibrium at points 3 and b.

B

The particle is in neutral equilibrium at points b and 2 .

C

No power is delivered by the force on the particle at points 1,3 , and b.

D

The particle has least kinetic energy at position 1 .

Solution:

Option (1) is correct because at 3 , force is opposite to displacement.
At is minimum.
Option (2) is incorrect because at 2 , there is net force and hence no equilibrium.
Option (3) is correct because at 1,3 and force is zero.
At
Option (4) is correct. Positive work is done after position 1.
Hence, will increase. So is least at 1 .

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