The diagram shows four positions of the bob of a simple pendulum. At which of these positions does the bob have maximum kinetic energy and minimum potential energy
1
2
None Of The Above
4
Explanation
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Discussions (7)
The K. E can only be maximum when the bob is at the middle. Therefore C is actually correct.
the correct answer is c because at each of the points given the PE is greater than the KE
The correct answer is: B. 2
Explanation:
In a simple pendulum, the kinetic energy (KE) is maximum and potential energy (PE) is minimum when the pendulum bob passes through its lowest point — the equilibrium or rest position.
From the diagram:
Positions 1 and 4 are at the extreme ends — highest points — where the bob momentarily stops, so:
PE is maximum
KE is zero
Position 2 is the lowest point, where:
Velocity is highest
KE is maximum
PE is minimum
So, the pendulum bob has maximum kinetic energy and minimum potential energy at position 2.
Answer: B. 2
but then again if we were to pick the point in whick K.E is max and P.E is min the correct point should be at the centre of the diagram inbetween points 2 and 3.
