Really confused on these physics questions since we haven\'t covered them in cla

Question

Really confused on these physics questions since we haven't covered them in class! Any help is greatly appreciated!!

1. At which point is the potential energy a minimum?

a) A and E; b) A and C; c) C; d) A and E; e) all points have the same potential energy

2. At which point(s) is the maximum kinetic energy?

a) A and E; b) A and C; c) C; d) A and E; e) all points have the same kinetic energy

3. Which of the following statements is true for the pendulum bob pictures in the figure?

a) UA=KC; b) UD=KC; c) 2UA=KC; d) UA=2KC; e) UA + UE = KC

Explanation / Answer

the potential energy is maximum at highest point

as the bob comes down the potential energy is converted to KE

at mean position the PE becomes zero and KE becomex max (equal to PE at highest point)

1)

point C

2)

point C

3)

UA = KC

option a

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