Which-of-the-diagrams-represents-variation-of-total-mechanical-energy-of-a-pendulum-oscillating-in-air-as-function-of-time-

Question Number 23481 by Tinkutara last updated on 31/Oct/17

Which of the diagrams represents

variation of total mechanical energy of

a pendulum oscillating in air as function

of time ?

Commented by Tinkutara last updated on 01/Nov/17

Thank you very much Sir!

Commented by Tinkutara last updated on 31/Oct/17

Commented by ajfour last updated on 31/Oct/17

(c) a i r r e s i s t a n c e p r o p o r t i o n a l

t o s p e e d . T h e r e m i g h t a l s o b e

i n t e r f e r e n c e f r i n g e s w i t h i n

t h e d e c a y i n g d i f f r a c t i o n p a t t e r n .

(:!)

Commented by Tinkutara last updated on 31/Oct/17

Why does not (b) ? Why M . E . is never 0 ?

Commented by ajfour last updated on 31/Oct/17

w h e n a m p l i t u d e, h e n c e s p e e d

d e c r e a e s e a n d b e c o m e s s m a l l

t h e r a t e o f l o s z i n m e c h a n i c a l e n e r g y

b e c o m e s s m a l l t o o . .

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