Question

21. In Fig
and D are four pendulums
suspended from the same
elastic string XY. The
lengths of pendulum A
and D are equal, while
the length of pendulum B
hantee and of the
ndalum C is longer
Pendulum A is set into
Fig. 7.15
oo
30.
What is your observation about the vibrations of
pendulum D 7 b) Give reason for your observation
part (a). (c) What type of vibrations take place in
pendulums B and C 7(d) Give reason for the answer
in part
c
ans for no cd

Answer 1

Answer:

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Explanation: