KVPY2011PhysicsOscillations
A simple pendulum oscillates freely between points A and B. We now put a peg (nail) at some point C as shown. As the pendulum moves from A to the right, the string will bend at C and the pendulum will go to its extreme points D . Ignoring friction, the point D
Options
- Awill lie on the line AB
- Bwill lie above the line AB
- Cwill lie below the line AB
- Dwill coincide with B
Correct answer
A. will lie on the line AB
Step-by-step solution
According to law of conservation of mechanical energy array l K _ i + U _ i = K _ f + U _ f 0+ U _ i =0+ U _ f h _ i = h _ f array Point D is at line AB