Work Energy And Power Question 142
Question: A particle is moving in the vertical plane. It is attached at one end of a string of length whose other end is fixed. The velocity at the lowest point is . The tension in the string is and velocity of the particle is at any position. Then, which of the following quantity will remain constant.
Options:
A)
B) kinetic energy
C) Gravitational potential energy
D)
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Answer:
Correct Answer: A
Solution:
[a] The tension vector
Hence